0000000001006696
AUTHOR
Delphi Collaboration
showing 465 related works from this author
First evidence of hard scattering processes in single tagged gamma-gamma-collisions
1995
For the first time, multihadronic production from single tagged gammagamma collisions has been studied, where one of the scattered leptons was tagged at very low virtual photon absolute mass squared ( = 0.06GeV/(c2))2 ). Data collected during 1991 and 1992 in the DELPHI experiment at LEP are shown to agree well with predictions which included the non-perturbative vector meson dominance model in which the interacting photons are assumed to have converted into a vector meson (rho, omega or pi), a quark-parton model which describes direct photon interactions and a QCD-based model which considers the photon to have quark and gluon structure functions. Five different parametrizations of these st…
Search for neutralinos, scalar leptons and scalar quarks in e(+)e(-) interactions at root s=130 GeV and 136 GeV
1996
Using data accumulated by DELPHI during the November 1995 LEP run at 130¿136 GeV, searchs have been made for events with jets or leptons in conjunction with missing momentum. The results are interpreted in terms of limits on the production of neutralinos, scalar leptons, and scalar quarks.
A measurement of b+ and b-0 lifetimes using (d)over-bar-l(+) events
1995
A measurement of B meson lifetimes is presented using data collected from 1991 to 1993 by the DELPHI detector at the LEP collider. Samples of events with a D meson and a lepton in the same jet are selected where D¯0ℓ+ and D*ℓ+ events originate mainly from the semileptonic decays of B+ and B0 mesons, respectively. From the reconstructed B decay length and the estimated B momentum, taking into account the dilution due to B decays into D¯∗∗ℓ+v , the following B meson lifetimes and lifetime ratio are measured: τ(B+)=1.61+0.16−0.16(stat.)±0.12(syst.)psτ(B0)=1.61+0.14−0.13(stat.)±0.08(syst.)psτ(B+)/τ(B0)=1.00+0.17−0.15(stat.)±0.10(syst.) and an average lifetime of B+ and B0 mesons is obtained: τ(…
Search for pair-produced heavy scalars in Z° decays
1994
A search for charged Higgs bosons decaying into quarks is described, based on statistics of around 1.7 million hadronic Z0 decays detected in DELPHI. Despite the very high background from standard hadronic decays of the Z0, masses in the range up to 43.5 GeV/c2 are excluded at the 95% con dence level. After combination with a search for leptonic decays, this mass limit is extended to cover all branching ratios. A similar analysis sets new limits on the possible production of any pair-produced heavy scalar decaying into a pair of jets, such as neutral Higgs bosons in a two doublet scheme and diquarks.
Search for neutral Higgs bosons in e(+)e(-) collisions at root s=183 GeV
1999
Neutral Higgs bosons were searched for in the data collected by DELPHI at a centre-of-mass energy of 183 GeV, corresponding to an integrated luminosity of 54 pb TeX . The production of the lightest neutral Higgs boson with either an on-shell Z boson or a neutral pseudo-scalar Higgs boson was analysed. Lower limits at the 95% confidence level were obtained on the Higgs boson masses. The limits are 85.7 GeV/ TeX for the Standard Model Higgs boson and 74.4 GeV/ TeX for the scalar and 75.3 GeV/ TeX for the pseudo-scalar Higgs bosons as predicted by the minimal super-symmetric extension of the Standard Model with commonly used assumptions on the model parameters, plus the assumption that the mas…
Measurement of inclusive rho(0), f(0)(980), f(2)(1270), K-2(*0)(1430) and f '(2)(1525) production in Z(0) decays
1999
DELPHI results are presented on the inclusive production of the neutral mesons ρ0, f0(980), f2(1270), KView the MathML source and f′2(1525) in hadronic Z0 decays. They are based on about 2 million multihadronic events collected in 1994 and 1995, using the particle identification capabilities of the DELPHI Ring Imaging Cherenkov detectors and measured ionization losses in the Time Projection Chamber. The total production rates per hadronic Z0 decay have been determined to be: 1.19±0.10 for ρ0; 0.164±0.021 for f0(980); 0.214±0.038 for f2(1270); 0.073±0.023 for KView the MathML source; and 0.012±0.006 for f′2(1525). The total production rates for all mesons and differential cross-sections for …
Study of B-s(0)-(B-s(0))over-bar oscillations and B-s(0) lifetimes using hadronic decays of B-s(0) mesons
2000
Oscillations of B0s mesons have been studied in samples selected from about 3.5 million hadronic Z decays detected by DELPHI between 1992 and 1995. One analysis uses events in the exclusive decay channels: B0s -> Ds- pi+ or Ds- a1+ and B0s -> anti-D0 K- pi+ or anti-D0 K- a1+, where the D decays are completely reconstructed. In addition, B0s anti-B0s oscillations have been studied in events with an exclusively reconstructed Ds accompanied in the same hemisphere by a high momentum hadron of opposite charge. Combining the two analyses, a limit on the mass difference between the physical B0s states has been obtained: Delta(m_B0s) > 4.0 ps^{-1} at the 95% C.L. with a sensitivity of Delta(m_B0s) …
Study of prompt photon production in hadronic Z° decays.
1995
From a sample of 1.5 million Z0 ! qq decays collected by the DELPHI detector during 1991, 1992 and 1993, the production cross section for isolated nal state photons is measured and is compared with the O( ; s) matrix element calculations implemented in the EEPRAD and GNJETS Monte Carlo generators. The observed photon yield is used to derive the electroweak couplings of charge 2/3 (u-type) and charge 1/3 (d-type) quarks to the Z0 boson. The measured values c2=3 = 0:91+0:25 0:36 and c1=3 = 1:62+0:24 0:17 are compatible with the Standard Model prediction, c2=3 = 1:145 and c1=3 = 1:477.
Measurement of the mass and width of the W boson in e(+)e(-) collisions at root s=189 GeV
2001
A measurement of the W mass and width has been performed by the DELPHI collaboration using the data collected during 1998. The data sample has an integrated luminosity of 155 pb^{-1} and an average centre-of-mass energy of 188.6 GeV. Results are obtained by applying the method of direct reconstruction of the mass of the W from its decay products in both the W+W- -> lvqq and W+W- -> qqqq channels. The W mass result for the 1998 data set is M_W = 80.387 +/- 0.087 (stat) +/- 0.034 (syst) +/- 0.017 (LEP) +/- 0.035 (FSI) GeV/c2, where FSI represents the uncertainty due to final state interaction effects in the qqqq channel, and LEP represents that arising from the knowledge of the beam energy of…
A Measurement of B Meson Production and Lifetime Using D`− Events in Z0 Decays
1993
A study of B meson decays into D l- X final states is presented. In these events, neutral and charged D mesons originate predominantly from B+ and B0 decays, respectively. The dilution of this correlation due to D** production has been taken into account. From 263700 hadronic Z0 decays collected in 1991 with the DELPHI detector at the LEP collider, 92 D0 --> K- pi+, 35 D+ --> K- pi+ pi+ and 61 D*+ --> D0 pi+ followed by D0 --> K- pi+ or D0 --> K- pi+ pi+ pi-, are found with an associated lepton of the same charge as the kaon. From the D0 l- and D*+ l-, the probability f(d) that a b quark hadronizes into a B- (or B0BAR),meson is found to be 0.44 +/-0.08 +/-0.09, corresponding to a total (B(s…
Charged and identified particles in the hadronic decay of W bosons and in e(+)e(-) -> q(q)over-bar from 130 to 200 GeV
2000
Inclusive distributions of charged particles in hadronic W decays are experimentally investigated using the statistics collected by the DELPHI experiment at LEP during 1997, 1998 and 1999, at centre-of-mass energies from 183 to around 200 GeV. The possible effects of interconnection between the hadronic decays of two Ws are not observed. Measurements of the average multiplicity for charged and identified particles in q qbar and WW events at centre-of-mass energies from 130 to 200 GeV and in W decays are presented. The results on the average multiplicity of identified particles and on the position xi^* of the maximum of the xi_p = -log(2p/sqrt(s)) distribution are compared with predictions o…
Study of orientation of 3-Jet events in Z(0) hacronic decays using the DELPHY detector
1992
The study of the orientation of three-jet events from e+ e- --> Z0 --> multi-hadrons is presented, in particular the polar angle distributions of the thrust axis and of the normal to the three-jet plane, and the azimuthal correlations between the hadron plane and the one defined by the beam and thrust axes. The data are compared with results at lower energy and with QCD predictions. Good agreement with QCD predictions is observed. The scalar gluon theory is excluded by the data.
Measurement of the B0 - anti-B0 mixing using the average electric charge of hadron jets in Z0 decays
1994
From the data recorded with the DELPHI detector at LEP in the years 1991-1992, 46 497 events were selected having a high-momentum muon in hadron jets. A fit to the average electric charge sum of the jets recoiling against a b-quark jet tagged by a high-PT muon results in an average mixing parameter of chiBAR = 0.144 +/- 0.014(stat.)+0.017/-0.011(syst.).
Search for SUSY with R-parity violating LL(E)over-bar couplings at root s=189 GeV
2000
Searches for pair production of supersymmetric particles under the assumption that R-parity is not conserved are presented, based on data recorded by the DELPHI detector in 1998 from e+e- collisions at a centre-of-mass energy of 189 GeV. Only one R-parity violating LL\bar{E} term (i.e. one lambda coupling), which couples scalar leptons to leptons, is considered to be dominant at a time. Moreover, it is assumed that the strength of the R-parity violating couplings is such that the lifetimes can be neglected. The search for pair production of neutralinos, charginos and sleptons has been performed for both direct R-parity violating decays and indirect cascade decays. The results are in agreeme…
Search for heavy stable and long-lived particles in e(+)e(-) collisions at root s=189 GeV
2000
A search for stable and long-lived heavy charged particles was performed using the data taken by the DELPHI experiment at an energy of 189 GeV. The Cherenkov light detected in the Ring Imaging Cherenkov Detector and the ionisation loss measured in the Time Projection Chamber were used to identify heavy particles passing through the detector. No evidence for the production of such particles has been found, therefore exclusion limits at 95% confidence level were derived on the masses of left and right handed smuons and staus. The results were combined with previous DELPHI searches in this channel. Including previous DELPHI results, masses of left (right) handed stable smuons and staus can be …
A study of the reaction e(+)e(-)->mu(+)mu(-)gamma(ISR) at LEP and search for new physics at annihilation energies near 80 GeV
1997
A study of the channel e+e− → μ+μ−γ scISR, where γ\scISR is an initial state radiation photon, is presented using data collected by the DELPHI experiment from 1991 to 1994. The total cross-section at effective annihilation energies (s′−−√) below the Z0 peak is obtained by using the events with relatively hard initial state radiative photon(s) (Eγ > ~1~GeV). The differential cross-section as a function of the muon polar production angle is also determined in order to extract the forward-backward asymmetries for the reaction e+e−→μ+μ− at energies s′−−√ between 20 and 87~GeV. The ratio of the helicity cross-sections σLL+σRRσRL+σLR, where the two subscripts stand for the helicities of the incom…
Search for leptoquarks and FCNC in e+e- annihilations at √s=183 GeV
1999
A search for events with one jet and at most one isolated lepton used data taken at LEP-2 by the DELPHI detector.These data were accumulated at a center-of-mass energy of 183 GeV and correspond to an integrated luminosity of 47.7 1/pb. Production of single scalar and vector leptoquarks was searched for. Limits at 95% confidence level were derived on the masses (ranging from 134GeV/c2 to 171GeV/c2 for electromagnetic type couplings) and couplings of the leptoquark states.A search for top-charm flavour changing neutral currents(e+e−→t¯c or charge conjugate) used the semileptonic decay channel. A limit on the flavour changing cross-section via neutral currents was set at 0.55pb (95% confidence…
Observation of short-range 3-particle correlations in e(+)e(-) annihilations at lep energies
1995
\def\tpc{three-particle correlation} \def\twopc{two-particle correlation} Measurements are presented of short range three-particle correlations in e^+ e^- annihilations at LEP using data collected by the DELPHI detector. %The jet structure is studied using three-particle correlation functions. At small values of the four-momentum difference, strong three-particle correlations are observed for like-sign (+++ and ---) and for unlike-sign (++- and +--) pion combinations which are not a consequence of two-particle correlations. A possible explanation of the observed effects in like-sign combinations is the existence of higher order Bose-Einstein interference, which significantly changes the par…
Search for stable heavy charged particles in e(+)e(-) collisions at root s=130-136, 161 and 172 GeV
1997
A search for stable or long-lived heavy charged particles in e+e− interactions at energies of 130¿136, 161 and 172 GeV has been performed using the data taken by the DELPHI experiment at LEP. The search is based on particle identification provided by the Time Projection Chamber and the Ring Imaging Cherenkov detector. Upper limits at 95% confidence level are derived on the cross-section for heavy long-lived pair-produced charge ±e and View the MathML source particles in the range of 0.4¿2.3 pb for masses from 45 to 84 GeV/c2. Within supersymmetric extensions of the Standard Model, long-lived charginos with masses from 45 to 84 (80) GeV/c2 for high (low) sneutrino masses can be excluded at 9…
A Study of radiactive muon-pair events at Z° energies and limits on an additional Z' gauge boson
1995
An analysis is reported on the channele + e −→μ+μ−(nγ), n=1,2..., using data taken with the DELPHI detector at LEP from 1990 to 1992. Differential cross sections of the radiative photons as a function of photon energy and of the angle between the photon and the muon are presented. No significant deviations from expectations are observed. The data are also used to extract the muon-pair cross section and asymmetry below the Z0 peak by using those events with relatively hard initial state radiative photon(s). The measured cross section and asymmetry show no significant deviation from the Standard Model expectations. These results together with the DELPHI cross section and asymmetry measurement…
Measurement of A(FB)(b anti-b) in hadronic Z decays using a jet charge technique
1999
The b {b} forward-backward asymmetry has been determined from the average charge flow measured in a sample of 3,500,000 hadronic Z decays collected with the DELPHI detector in 1992-1995. The measurement is performed in an enriched b {b} sample selected using an impact parameter tag and results in the following values for the b {b} forward-backward asymmetry: AFBb\overline{b} (89.55 GeV) = 0.068 ± 0.018 (stat.)± 0.0013(syst.) AFBb\overline{b} (91.26 GeV) = 0.0982±0.0047(stat.)±0.0016(syst.) AFBb\overline{b} (92.94 GeV) = 0.123 ± 0.016 (stat.)± 0.0027(syst.) The b {b} charge separation required for this analysis is directly measured in the b tagged sample, while the other charge separations a…
Search for sleptons in e(+)e(-) collisions at root s=183 to 189 GeV
2001
Data taken by the DELPHI experiment at centre-of-mass energies of 183 GeV and 189 GeV with a total integrated luminosity of 212 pb^{-1} have been used to search for the supersymmetric partners of the electrons, muons, and taus in the context of the Minimal Supersymmetric Standard Model (MSSM). The decay topologies searched for were the direct decay ({\tilde \ell} -> \ell {\tilde \chi_1^0}), producing acoplanar lepton pairs plus missing energy, and the cascade decay ({\tilde \ell} -> \ell {\tilde \chi_2^0} -> \ell \gamma {\tilde \chi_1^0}), producing acoplanar lepton and photon pairs plus missing energy. The observed number of events is in agreement with Standard Model predictions. The 95% C…
Hadronization properties of b quarks compared to light quarks in e(+)e(-)-> q(q)over-bar from 183 to 200 GeV
2000
The DELPHI detector at LEP has collected 54 pb^{-1} of data at a centre-of-mass energy around 183 GeV during 1997, 158 pb^{-1} around 189 GeV during 1998, and 187 pb^{-1} between 192 and 200 GeV during 1999. These data were used to measure the average charged particle multiplicity in e+e- -> b bbar events, _{bb}, and the difference delta_{bl} between _{bb} and the multiplicity, _{ll}, in generic light quark (u,d,s) events: delta_{bl}(183 GeV) = 4.55 +/- 1.31 (stat) +/- 0.73 (syst) delta_{bl}(189 GeV) = 4.43 +/- 0.85 (stat) +/- 0.61 (syst) delta_{bl}(200 GeV) = 3.39 +/- 0.89 (stat) +/- 1.01 (syst). This result is consistent with QCD predictions, while it is inconsistent with calculations ass…
Measurement of the B-s(0) lifetime and study of B-s(0)-(B-s(0))over-bar oscillations using D(s)l events
2000
Lifetime and oscillations of B0s mesons have been studied in events with a large transverse momentum lepton and a Ds of opposite electric charge in the same hemisphere, selected from about 3.6 million hadronic Z0 decays accumulated by DELPHI between 1992 and 1995. The B0s lifetime and the fractional width difference between the two physical B0s states have been found to be: \tau_(B0s) = (1.42^{+0.14}_{-0.13}(stat.) +/- 0.03(syst.)) ps \Delta\Gamma(B0s)/\Gamma(B0s) 7.4 ps^{-1} at the 95% C.L. with a corresponding sensitivity equal to 8.1 ps^{-1}.
Determination of alpha-s in second order QCD from hadronic Z decays
1992
Distributions of event shape variables obtained from 120600 hadronic Z decays measured with the DELPHI detector are compared to the predictions of QCD based event generators. Values of the strong coupling constant alpha(s) are derived as a function of the renormalization scale from a quantitative analysis of eight hadronic distributions. The final result, alpha(s) (M(Z)) = 0.113 +/- 0.007, is based on second order perturbation theory and uses two hadronization corrections, one computed with a parton shower model and the other with a QCD matrix element model.
Inclusive Sigma(-) and Lambda(1520) production in hadronic Z decays
2000
Production of Sigma- and Lambda(1520) in hadronic Z decays has been measured using the DELPHI detector at LEP. The Sigma- is directly reconstructed as a charged track in the DELPHI microvertex detector and is identified by its Sigma -> n pi decay leading to a kink between the Sigma- and pi-track. The reconstruction of the Lambda(1520) resonance relies strongly on the particle identification capabilities of the barrel Ring Imaging Cherenkov detector and on the ionisation loss measurement of the TPC. Inclusive production spectra are measured for both particles. The production rates are measured to be = 0.081 +/- 0.002 +/- 0.010, = 0.029 +/- 0.005 +/- 0.005. The production rate of the Lambda(1…
Measurement of the multiplicity of gluons splitting to bottom quark in hadronic Z° decays
1997
An inclusive measurement of the average multiplicity of bb pairs from gluons, gbb, in hadronic Z0 events collected by the DELPHI experiment at LEP, is presented. A counting technique, based on jet b-tagging in 4-jet events, has been used. Looking for secondary bottom production in events with production of any primary flavour, by requiring two b-tagged jets in well defined topological configurations, gave gbb = (0.21 +/- 0.11 (stat) +/- 0.09(syst)) %. This result was checked with a different method designed to select events with four b quarks in the final state. Agreement within the errors was found.
Production of strange b-baryons decaying into xi-/+-l-/+ pairs at LEP
1995
An excess of events containing, in a jet, a same-sign Xi(-/+) - l(-/+) pair as compared to those with an opposite-sign Xi(-/+) - l(-/+) pair has been observed in an analysis of 1.7 million hadronic Z(o) decays collected by the DELPHI detector at LEP between 1991 and 1993 inclusive. The probability for this signal to come from non B-baryon decays is less than 5 x 10(-4). The measured production fraction corresponds to: P(b --> B - baryon) x BR(B - baryon --> Xi(-) l(-) X) = (5.9 +/- 2.1 +/- 1.0) x 10(-4), per lepton species, averaged for electrons and muons and assuming the two channels have an equal contribution. Semileptonic decays of Lambda(b) baryons can account for less than 10% of thes…
Measurement of the B¯-- >D(*)πlν¯l branching fraction
2000
A study of b semileptonic decays into D, D pi+- and D* pi+- final states is presented. The D0, D+ and D*+ mesons are exclusively reconstructed in Z decay data recorded from 1992 to 1995 in the DELPHI experiment at LEP. The overall branching fractions are measured to be: BR(b -> D^0 \ell^- \bar{\nu}_{\ell} X) = (7.04 +/- 0.34 (stat) +/- 0.36 (syst.exp) +/- 0.17 (BR_D))% BR(b -> D^+ \ell^- \bar{\nu}_{\ell} X) = (2.72 +/- 0.19 (stat) +/- 0.16 (syst.exp) +/- 0.18 (BR_D))% BR(b -> D^{*+} \ell^- \bar{\nu}_{\ell} X) = (2.75 +/- 0.17 (stat) +/- 0.13 (syst.exp) +/- 0.09 (BR_D))% where the D0 and D+ results include also contributions from D*0 and D*+ decays. A fit to the distribution of the pi+- impa…
Search for charginos nearly mass-degenerate with the lightest neutralino
1999
A search for charginos with masses close to the mass of the lightest neutralino is reported, based on the data collected with the DELPHI detector at LEP from 1995 to 1997 at centre-of-mass energies between 130 and 183 GeV. The signature of a photon at high transverse momentum radiated from the initial state reduces the two-photon background to acceptable rates, thus making the mass differences between a few hundred MeV/c^2 and 3 GeV/c^2 detectable. In very nearly degenerate scenarios, the lifetime of the chargino can be large enough to produce either visible secondary vertices or decays outside the detector; therefore, quasi-stable heavy charged particles and displaced decay vertices were a…
Lambda(b) polarization in Z(0) decays at LEP
2000
The longitudinal polarization of the Λb baryon is measured at the LEP e+e− collider by DELPHI. It is determined from the charged lepton and neutrino energy spectra in 249±19 Λb semileptonic decays reconstructed in ≈3.5 million hadronic Z0 decays using Λ0-lepton correlations. The measured polarization is: PΛb=−0.49−0.30+0.32(stat.)±0.17(syst.)
Study of radiative leptonic events with hard photons and search for excited charged leptons at S**(1/2) = 130-GeV - 136-GeV
1996
During the last 1995 data acquisition period at LEP, the DELPHI experiment collected an integrated luminosity of 5.9 pb−1 at centre-of-mass energies of 130 GeV and 136 GeV. Radiative leptonic events (e,μ,τ) with high energy photons were studied and compared to Standard Model predictions. The data were used to search for charged excited leptons decaying through an electromagnetic transition. No significant signal was found. From the search for pair produced excited leptons, the limits me∗>62.5 GeV/c2, mμ∗>62.6 GeV/c2 and mτ∗>62.2 GeV/c2 at 95\% confidence level were established. For single excited lepton production, upper limits on the ratio λ/mℓ∗ of the coupling of the excited charged lepto…
Limits on the masses of supersymmetric particles at root s=189 GeV
2000
Searches for charginos, neutralinos and sleptons at LEP2 centre-of-mass energies from 130 GeV to 189 GeV have been used to set lower limits on the mass of the Lightest Supersymmetric Particle and other supersymmetric particles within the MSSM framework. R-parity conservation has been assumed. The lightest neutralino was found to be heavier than 32.3 GeV/c^2 independent of the m_0 value. The lightest chargino, the second-to-lightest neutralino, the next-to-heaviest neutralino, the heaviest neutralino, the sneutrino and the right-handed selectron were found to be heavier than 62.4 GeV/c^2, 62.4 GeV/c^2, 99.9 GeV/c^2, 116.0 GeV/c^2, 61.0 GeV/c^2, and 87.0 GeV/c^2, respectively. These limits do…
Search for supersymmetric partners of top and bottom quarks at root s=189 GeV
2000
Searches for supersymmetric partners of top and bottom quarks are presented using data taken by the DELPHI experiment at LEP in 1997 and 1998. No deviations from standard model expectations are observed in these data sets, which are taken at centre-of-mass energies of 183 GeV and 189 GeV and correspond to integrated luminosities of 54 pb^{-1} and 158 pb^{-1}. These results are used in combination with those obtained by DELPHI at lower centre-of-mass energies to exclude regions in the squark-neutralino mass plane at 95% confidence level.
Measurement of the gluon fragmentation function and a comparison of the scaling violation in gluon and quarks jets
2000
The fragmentation functions of quarks and gluons are measured in various three-jet topologies in Z decays from the full data set collected with the Delphi detector at the Z resonance between 1992 and 1995. The results at different values of transverse momentum-like scales are compared. A parameterization of the quark and gluon fragmentation functions at a fixed reference scale is given. The quark and gluon fragmentation functions show the predicted pattern of scaling violations. The scaling violation for quark jets as a function of a transverse momentum-like scale is in a good agreement with that observed in lower energy e+e− annihilation experiments. For gluon jets it appears to be signifi…
Search for R-parity violation with a (U)over-bar(D)over-bar(D)over-bar coupling at root s approximate to 189 GeV
2001
Searches for pair production of gauginos and squarks in e+e- collisions at a centre-of-mass energy of 189 GeV have been performed on data corresponding to an integrated luminosity of 158 pb^{-1} collected by the DELPHI detector at LEP. The data were analyzed under the assumption of non-conservation of R-parity through a single dominant Ubar Dbar Dbar coupling between squarks and quarks. Typical final states contain between 4 and 10 jets with or without additional leptons. No excess of data above Standard Model expectations was observed. The results were used to constrain domains of the MSSM parameter space and derive limits on the masses of supersymmetric particles. The following mass limit…
Search for lepton flavour number violating Z°-decays
1997
A search for lepton flavour number violating $Z^0$ decays in the channels \begin{center} $Z^0\rightarrow \mu\tau$,\\ $Z^0\rightarrow e\tau$, \\ $Z^0\rightarrow e\mu$, \\ \end{center} using the DELPHI detector with data collected during the 1991--94 LEP runs, is described. No signal was found. Upper limits at 95\% confidence level for the respective branching fractions of $1.2\times 10^{-5}$, $2.2\times 10^{-5}$, and $0.25\times 10^{-5}$, were obtained.
Search for charginos in e(+)e(-) interactions at root s=189 GeV
2000
An update of the searches for charginos and gravitinos is presented, based on a data sample corresponding to the 158 pb^{-1} recorded by the DELPHI detector in 1998, at a centre-of-mass energy of 189 GeV. No evidence for a signal was found. The lower mass limits are 4-5 GeV/c^2 higher than those obtained at a centre-of-mass energy of 183 GeV. The (\mu,M_2) MSSM domain excluded by combining the chargino searches with neutralino searches at the Z resonance implies a limit on the mass of the lightest neutralino which, for a heavy sneutrino, is constrained to be above 31.0 GeV/c^2 for tan(beta) \geq 1.
Measurement of V-cb from the decay process (B)over-bar(0)-> D(*+)l(-)(nu)over-bar
2001
A new precise measurement of |V_{cb}| and of the branching ratio BR(\bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}) has been performed using a sample of about 5000 semileptonic decays \bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell}, selected by the DELPHI detector at LEP I by tagging the soft pion from D^{*+} -> D^0 \pi^+. The results are: V_{cb}=(39.0 +/- 1.5 (stat.) ^{+2.5}_{-2.6} (syst. exp.) +/- 1.3 (syst. th.)) x 10^{-3} BR(\bar{B^0} -> D^{*+} \ell^- \bar{\nu_\ell})=(4.70 +/- 0.13 (stat.) ^{+0.36}_{-0.31} (syst. exp.))% The analytic dependences of the differential cross-section and of the Isgur Wise form factor as functions of the variable w = v_{B^0}.v_{D^*} have also been obtained by unfolding …
An upper limit for Br(Z°→ggg) from symmetric 3-jet hadronic decays.
1996
An upper limit for BR(Z0 → 3g) is obtained from a correlation method, which distinguishes statistically between quark and gluon jets by using the difference in their charged particle multiplicity distributions. From the sample of threefold symmetric three-jet events collected by the DELPHI experiment at LEP during 1991¿1994, the 95% confidence level upper limit is deduced to be: BR(Z0 → 3g) ≤ 1.6 × 10−2 for the JADE and BR(Z0 → 3g) ≤ 1.5 × 10−2 for the DURHAM jet-finder.
Production of Lambda and Lambda anti-Lambda correlations in the hadronic decays of the Z (0)
1993
An analysis of the production of the LAMBDA baryon in the hadronic decays of the Z0 is presented, based on about 993K multihadronic events collected by the DELPHI detector at LEP during 1991 and 1992. The differential cross section of the LAMBDA and the correlations between LAMBDA and LAMBDABAR produced in the same event are compared to current models, based both on string fragmentation and on cluster decay. The predictions of the string fragmentation model are found to give satisfactory agreements with the data, clearly better than those of the cluster model.
Search for scalar fermions and long-lived scalar leptons at centre-of-mass energies of 130 GeV to 172 GeV.
1999
Data taken by DELPHI during the 1995 and 1996 LEP runs have been used to search for the supersymmetric partners of electron, muon and tau leptons and of top and bottom quarks. The observations are in agreement with standard model predictions. Limits are set on sfermion masses. Searches for long lived scalar leptons from low scale supersymmetry breaking models exclude stau masses below 55~GeV/c2 at the 95\% confidence level, irrespective of the gravitino mass.
Measurement of the triple-gluon vertex from 4-JET events at LEP
1993
From the combined data of 1990 and 1991 of the DELPHI experiment at LEP, 13057 4-jet events are obtained and used for determining the contribution of the triple-gluon vertex. The relevant variables are the generalized Nachtmann Reiter angle theta(NR)* and the opening angle of the two least energetic jets. A fit to their two-dimensional distribution yields C(A)/C(F)=2.12+/-0.35 and N(C)/N(A)=0.46+/-0.19, where C(A)/C(F) is the ratio of the coupling strength of the triple-gluon vertex to that of gluon bremsstrahlung from quarks, and N(C)/N(A), the ratio of the number of quark colours to the number of gluons. This constitutes a convincing model-independent proof of the existence of the triple-…
Charged particle multiplicity in e(+)e(-) interactions at root s=130 GeV
1996
From the data collected by DELPHI at LEP in autumn 1995, the multiplicity of charged particles at a hadronic energy of 130 GeV has been measured to be = 23:84 0:51(stat) 0:52(syst). When compared to lower energy data, the value measured is consistent with the evolution predicted by QCD with corrections at next-to-leading order, for a value s(130GeV) = 0:105 0:003(stat) 0:008(syst).
Search for charged Higgs bosons in e(+)e(-) collisions at root s = 172 GeV
1998
This paper presents results on charged Higgs boson production, based on LEP data collected at s√=172 GeV, that complement the previous DELPHI results obtained at centre of mass energies up to 161 GeV. %The analysis is based on LEP data collected at s√=172 GeV. The charged Higgs bosons are assumed to be pair produced and to decay either into a quark pair %, identified as cs, or into τντ. The three different possible final states are included in the analysis. Data from ring imaging Cherenkov and microvertex detectors are used to identify the quarks as a cs pair. %No significant signal was found. The number of candidates found is compatible with the background expected from standard processes.…
Determination of the e(+)e(-)->gamma gamma(gamma) cross-section at centre-of-mass energies ranging from 189 GeV to 202 GeV
2000
A test of the QED process e+e- -> gamma gamma (gamma) is reported. The data analysed were collected with the DELPHI detector in 1998 and 1999 at the highest energies achieved at LEP, reaching 202 GeV in the centre-of-mass. The total integrated luminosity amounts to 375.7 pb^{-1}. The differential and total cross-sections for the process e+e- -> gamma gamma were measured, and found to be in agreement with the QED prediction. 95% Confidence Level (C.L.) lower limits on the QED cut-off parameters of Lambda+ > 330 GeV and Lambda- > 320 GeV were derived. A 95% C.L. lower bound on the mass of an excited electron of 311 GeV/c^2 (for lambda_gamma = 1) was obtained. s-channel virtual graviton exchan…
Measurement of vertical bar V-cs vertical bar using W decays at LEP2
1998
Decays of W± bosons, produced at LEP2, have been used to measure the |Vcs| element of the Cabibbo-Kobayashi-Maskawa matrix. Values for |Vcs| were extracted both from the measured hadronic branching ratio of W± decays and by tagging the flavour of hadronic jets produced in W± decays. Applying the two methods to the data collected during 1996 at energies of 161 and 172 GeV, DELPHI obtains |Vcs|=0.91+0.15−0.14(stat)±0.05(syst).
Upper limits on the branching ratios tau-]mu-gamma and tau-]e-gamma
1995
The DELPHI collaboration has searched for lepton flavour violating decays tau -> mugamma and tau -> egamma using a data sample of about 70 pb-1 of integrated luminosity corresponding to 81 000 produced tau+tau- events. No candidates were found for either of the two modes. This yields branching ratio upper limits of B(tau -> egamma) mugamma) < 6.2 × 10-5 at 90% confidence level.
Production of charged particles, K0(s), K+-, p and Lambda in Z --> b anti-b events and in the decay of b hadrons
1995
sample of events enriched in bb̄ quark pairs was selected in the data recorded by the DELPHI experiment at LEP during 1992 and 1993, by the presence of secondary decay vertices from short-lived particles. Using this sample, the average multiplicities of Ks0, K±, p(p̄), Λ(View the MathML source) and of charged particles in bb̄ events have been measured, distinguishing the component from fragmentation and the component coming from the decay of b-hadrons. The measurement of the average charge multiplicity in bb̄ events was used to compute the mean fractional beam energy carried by the primary b-hadron, and the difference in charged particle multiplicity between bb̄ events and light quark (uū, …
Determination of alpha(s) using the next-to-leading-log approximation of QCD
1993
A new measurement of alpha(s), is obtained from the distributions in thrust, heavy jet mass, energy-energy correlation and two recently introduced jet broadening variables following a method proposed by Catani, Trentadue, Turnock and Webber. This method includes the full calculation of O(alpha(s)2) terms and leading and next-to-leading logarithms resummed to all orders of alpha(s). The analysis is based on data taken with the DELPHI detector at LEP during 1991. I its found that the inclusion of the resummed leading and next-to-leading logarithms reduces the scale dependence of alpha(s) and allows an extension of the fit range towards the infrared limit of the kinematical range. The combined…
Upper limit for the decay B- -> tau(-)(v)over-bar(tau) the b -> tau(v)over-bar(tau)X branching ratio
2000
The branching ratio for the leptonic decay of charged B mesons (B- → tau (-)[([nu])over bar](tau)) has been measured using selected leptonic tau (-) → l(-)nu (tau)[([nu])over bar](l) and hadronic tau (-) → nu X-tau decays in Z → b (b) over bar decays recorded by DELPHI at LEP1 in 1992-1995. The result, BR(B- → tau (-)[([nu])over bar](tau)) lt 1.1 x 10(-3) at the 90% confidence level, is consistent with standard model expectations and puts a constraint on the ratio tan [beta]/MH+/- lt 0.46 (GeV/c(2))(-1) in the framework of models with two Higgs doublets (type II Higgs doublet model). From the missing energy distribution in Z → b (b) over bar decays without identified leptons, the b → tau[([…
Search for spontaneous R-parity violation at √s = 183 and 189 GeV
2001
Searches for spontaneous R-parity violating signals at sqrt(s) = 183 GeV and sqrt(s) = 189 GeV have been performed using the 1997 and 1998 DELPHI data, under the assumption of R-parity breaking in the third lepton family. The expected topology for the decay of a pair of charginos into two acoplanar taus plus missing energy was investigated and no evidence for a signal was found. The results were used to derive a limit on the chargino mass and to constrain the allowed domains of the MSSM parameter space.
Rapidity-rank structure of p(p)over-bar pairs in hadronic Z(0) decays
2000
The rapidity-rank structure of p pbar pairs is used to analyze the mechanism of baryon production in hadronic Z0 decay. The relative occurrence of the rapidity-ordered configuration p M pbar, where M is a meson, and that of p pbar adjacent pairs is compared. The data are found to be consistent with predictions from a mechanism producing adjacent-rank p pbar pairs, without requiring `string-ordered' p M pbar configurations. An upper limit of 15% at 90% confidence is determined for the p M pbar contribution.
Inclusive measurements of the K+- and p / anti-p production in hadronic Z0 decays
1995
This analysis, based on a sample of 170000 hadronic Z0 decays, provides a measurement of the K± and p/View the MathML source differential cross sections which is compared to string- and cluster fragmentation models. The total multiplicities for K± and p/View the MathML source per hadronic event were found to be: NK = 2.26 ± 0.18 and Np = 1.07 ± 0.14. The positions ξ* of the maxima of the differential cross sections as a function of ξ = ln(1/xp) for K± and p/View the MathML source were determined to be 2.63 ± 0.07 and 2.96 ± 0.16 respectively. A comparison of the ξ* values for various identified particles measured at LEP with the prediction of the Modified Leading Logarithm Approximation wit…
A Precise measurement of the partial decay width ratio R(b)**0 = Gamma(b anti-b) / Gamma(had)
1999
The partial decay width of the Z to bb¯ quark pairs has been measured by the DELPHI detector at LEP using data taken in the years 1992 to 1995. Decays of b-hadrons were tagged by several methods using tracks with large impact parameters and/or reconstructed secondary vertices, complemented by event shape variables. Combining these methods in a multivariate analysis the value Γ(Z→bb¯)Γ(Z→had)=0.21634±0.00067(stat)±0.00060(syst) was obtained, where the cc¯ production fraction was fixed to its Standard Model value.
Measurement of time-dependent b-d(0) (b)over-bar-d(0) mixing
1994
The time dependent mixing of View the MathML source mesons has been observed by using the correlations between the charge of D∗ mesons and the weighted mean charge of particles in each hemisphere. From a reconstructed D∗± sample corresponding to about 1.7 million hadronic Z0 decays, the mass difference between the two Bd0 mass eigenstates has been measured to be View the MathML source or, converting into eV/c2: Δm = [3.29 ± 0.79 (stat) ± 0.39 (syst.)] 10−4 eV/c2.
Search for pair produced neutralinos in events with photons and missing energy from e+e− collisions at S(1/2) = 130-GeV to 183-GeV
1999
The events with two photons and missing (transverse) energy collected by the DELPHI detector at centre-of-mass energies between 130~GeV and 183~GeV have been studied to search for processes of the type e+e−→YY with the subsequent decay Y→Xγ, where X is an undetectable neutral particle. Reactions of this kind are expected in supersymmetric models, where the Y particle can be either the lightest neutralino, decaying to a photon and a gravitino, or the next-to-lightest neutralino, decaying to a photon and the lightest neutralino. To study the case of long-lived Y particles, a search for single-photon events with the reconstructed photon axis pointing far from the beam interaction region has al…
Measurement of gamma(b(b)over-bar)/gamma(had) using impact parameter measurements and lepton identification
1995
The partial decay width of theZ to bb¯quark pairs has been measured by the DELPHI detector at LEP.b-hadrons, containingb-quarks, were tagged by leptons with high transverse momentum relative to the hadron or by tracks with large impact parameters to the primary vertex.The ratio of the numbers of events with a single such tag to those with two tags was used to estimate the efficiency of the method and to reduce the systematic uncertainty. Combining all methods, the value: Γbb¯Γhad=0.2210±0.0033±0.0003(model)±0.0014(Γcc¯) was found, where the third error corresponds to a±8% uncertainty on the cc production width. A maximum likelihood in to the single and di-lepton distributions gave the branc…
Searches for neutral Higgs bosons in e(+)e(-) collisions around root s=189 GeV
2000
Searches for neutral Higgs bosons in the Standard Model and the MSSM have been performed using data collected by the DELPHI experiment at a centre-of-mass energy of 188.7 GeV, corresponding to an integrated luminosity of 158 pb^{-1}. These analyses are used, in combination with our results from lower energies, to set new 95% confidence level lower mass bounds on the Standard Model Higgs boson (94.6 GeV/c^2) and on the lightest neutral scalar (82.6 GeV/c^2) and neutral pseudoscalar (84.1 GeV/c^2) Higgs bosons in a representative scan of the MSSM parameters. The results are also interpreted in the framework of a general two-Higgs doublet model.
Measurement of the forward backward asymmetry of c and b quarks at the Z pole using reconstructed D mesons
1999
A measurement of the forward--backward asymmetry of e+e−→cc¯ and e+e−→bb¯ on the Z resonance is performed using about 3.5 million hadronic Z decays collected by the DELPHI detector at LEP in the years 1992 to 1995. The heavy quark is tagged by the exclusive reconstruction of several D meson decay modes. The forward--backward asymmetries for c and b quarks at the Z resonance are determined to be: \renewcommand{\arraystretch}{1.6} \begin{array}{rcr@{}l} \Afbc(\sqrt{s} = 91.235 {\rm GeV}) &=& &#;0659 \pm 0.0094 (stat) \pm 0.0035 (syst) \Afbb (\sqrt{s} = 91.235 {\rm GeV}) &=& &#;0762 \pm 0.0194 (stat) \pm 0.0085 (syst) \Afbc(\sqrt{s} = 89.434 {\rm GeV}) &=&-&#;0496 \pm 0.0368 (stat) \pm 0.0053 …
Observation of charge-ordering in particle production in hadronic Z° decays
1997
Analysis of the rapidity structure of charge correlations in hadronic events from Z0 decays gives evidence for chain-like charge-ordering of particle production along the thrust axis, as predicted by `QCD-motivated¿ string-like fragmentation models.
"Table 4" of "Study of the Leptonic Decays of the $Z^0$ Boson"
1990
Statistical errors only.
"Table 23" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Energy Energy Correlation EEC.
"Table 4" of "Improved measurements of cross-sections and asymmetries at the Z0 resonance"
2000
No description provided.
"Table 4" of "Strange baryon production in Z hadronic decays"
1995
No description provided.
"Table 12" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
Thrust Major distribution. Axis definition is from corrected charged plus neutral particles.
"Table 1" of "Measurement and Interpretation of Fermion-Pair Production at LEP Energies of 183 and 189 GeV"
2003
No description provided.
"Table 13" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
Thrust Minor distribution. Axis definition is from corrected charged plus neutral particles.
"Table 45" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Three different schemes are used for evaluation of ALPHAS: (C=ALPHAS2) second alphas_s order, (C=NLLA) and (C=ALPHAS2+NLLA). See text of the paper for details. The second systematic (DSYS) error is the scale error.
"Table 2" of "Measurement and Interpretation of Fermion-Pair Production at LEP Energies of 183 and 189 GeV"
2003
No description provided.
"Table 13" of "Production characteristics of K0 and light meson resonances in hadronic decays of the Z0"
1993
No description provided.
"Table 5" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Jet Cone Energy Fraction.
"Table 4" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Transverse momentum PTOUT w.r.t. the Shericity axis. For the first table Sphericity axis definition is from seen charged particles corrected to final state particles. For the second table Sphericity axis definition is from seen charged plus neutral particles corrected to final state charged plus neutral particles.
"Table 14" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Oblateness distribution. Corrected to final state particles.
"Table 5" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
Integral of event shape distribution over the specified interval.
"Table 18" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
C-Parameter distribution. Corrected to final state particles.
"Table 10" of "Charged particle multiplicity distributions in restricted rapidity intervals in Z0 hadronic decays."
1992
Data for single hemisphere.
"Table 14" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
Oblateness distribution. Axis definition is from corrected charged plus neutral particles.
"Table 11" of "Identified Charged Particles in Quark and Gluon Jets"
2003
No description provided.
"Table 19" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
D-Parameter distribution. Corrected to final state particles.
"Table 3" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Energy Energy Correlation EEC.
"Table 28" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distribution of the Heavy Jet Masses (MH**2/EVIS**2) at cm energy 183 GeV.
"Table 9" of "Cross-sections and leptonic forward-backward asymmetries from the Z0 running of LEP."
2000
Cross section and forward-backward asymmetry in the MU+ MU- channel for the1995 data. The polar angle is 20 to 160 degrees. Additional systematic error for cross section of 0.28 PCT (efficiencies and backgrounds) and 0.14 PCT (absolute luminosity). Additional systematic error for the asymmetry of 0.0011.
"Table 29" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Jet Cone Energy Fraction.
"Table 1" of "Measurement of inclusive rho0, f0(980), f2(1270), K*2(1430)0 and f'2(1525) production in Z0 decays."
1999
Differential production cross sections. The error is the quadratic combination of the errors from the fits and the systematic uncertainty.
"Table 1" of "Measurement of the Z Z cross-section in e+ e- interactions at 183-GeV - 189-GeV."
2000
No description provided.
"Table 55" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
XP distribution for SIGMA(1385)+ production.. Data read from plot.
"Table 44" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
XP distribution for K*(892)+- production.. Data read from plot.
"Table 3" of "The scale dependence of the hadron multiplicity in quark and gluon jets and a precise determination of C(A)/C(F)."
1999
Twice the difference of the multiplicity in three jet events and in qqbar events of comparable scale 2(N_3jet-N_qqbar). The three-jet event multiplicity isequal to the data of Fig. 3c), the qqbar-multiplicity is taken from a fit of th e e+e- data corrected for the varying b-quark contribution. This multiplicity can be identified with the multiplicity of a hypothetical gluon-gluon event. Thereis a normalization uncertainty (i.e. a scale independent constant) of the gluon -gluon event multiplicity which should not influence the slope of the gg-multiplicity with scale (see paper). The errors shown are statistical only.
"Table 1" of "Measurement of inclusive pi0 production in hadronic Z0 decays"
1995
Differential cross section for all events.
"Table 38" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distribution of the Total Jet Broadening (BSUM) at cm energy 183 GeV.
"Table 30" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Differential 3-jet rate for the JADE Algorithm. Corrected to final state particles. YCUT is the jet finding cutt-off parameter.
"Table 10" of "Measurements of the tau polarization in Z0 decays"
1995
The values of weak mixing angle and ratio was obtained assuming lepton universality.
"Table 3" of "Measurement of inclusive pi0 production in hadronic Z0 decays"
1995
Differential cross section for the enriched (b bbar) data set.
"Table 21" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
TAU+ TAU- forward-backward asymmetries from the 1991 data set, corrected to full solid angle. Additional systematic error is 0.003 at the peak.
"Table 2" of "Identified particles in quark and gluon jets."
1997
Mercedes events.
"Table 12" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
MU+ MU- cross sections from the 1991 data set for events having both muons above 15 GeV and the polar angle of the mu- 20 to 160 degrees and the accollinearity angle <10 degrees. Additional systematic uncertainty, excluding luminosity, is 0.5 pct.
"Table 6" of "Determination of $alpha_{s}$ in second order {QCD} from hadronic $Z$ decays"
1992
The energy-energy correlation EEC as a function of the correlation angle CHI.
"Table 35" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Charged particle multiplicity compiled from current LEP I data.
"Table 10" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Sum of the Jet Masses.
"Table 3" of "Measurements of the tau polarization in Z0 decays"
1995
Errors are statistical only.
"Table 8" of "Measurements of the tau polarization in Z0 decays"
1995
No description provided.
"Table 15" of "Charged particle multiplicity distributions in restricted rapidity intervals in Z0 hadronic decays."
1992
Multiplicity moments in a single hemisphere.. CQ is defined as MEAN(MULT**Q)/MEAN(MULT)**Q.
"Table 22" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
5-jet rate for the Durham Algorithm.
"Table 3" of "Cross-sections and leptonic forward-backward asymmetries from the Z0 running of LEP."
2000
Hadronic cross section measured with the 1995 data. Additional systematic error of 0.10 PCT (efficiencies and backgrounds) and 0.11 PCT (absolute luminosity).
"Table 1" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
Hadronic cross sections from the 1990 data set. Additional systematic uncertainties come from efficiencies and background of 0.4 pct in addition to the luminosity uncertainty 0.7 pct.
"Table 2" of "A Measurement of the photon structure function F2(gamma) at an average Q**2 of 12-GeV**2/c**4"
1995
Low x domain.
"Table 21" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Light-Hemisphere-Mass distribution. Corrected to final state particles.
"Table 4" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
E+ E- cross sections from the 1991 data set for both final state fermions in the polar angle range 44 to 136 degrees and accollinearity < 10 degrees (the s + t data). Additional systematic error, excluding luminosity, is 0.37 pct.
"Table 4" of "Production characteristics of K0 and light meson resonances in hadronic decays of the Z0"
1993
Average multiplicity per hadronic event. Extrapolation to the full X range using the X-shape predicted by JETSET 7.4 PS model. Systematic errors are included in quadrature.
"Table 24" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
3-jet rate for the Jade Algorithm.
"Table 6" of "Measurement of inclusive production of light meson resonances in hadronic decays of the Z0"
1993
No description provided.
"Table 11" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Difference of the Jet Masses.
"Table 14" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distribution of (1-THRUST) at cm energy 183 GeV.
"Table 31" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Differential 4-jet rate for the Durham Algorithm. Corrected to final state particles. YCUT is the jet finding cutt-off parameter.
"Table 2" of "Search for promptly produced heavy quarkonium states in hadronic Z decays"
1996
No description provided.
"Table 12" of "Cross-sections and leptonic forward-backward asymmetries from the Z0 running of LEP."
2000
Cross section and forward-backward asymmetry in the TAU+ TAU- channel for the 1995 data. Additional systematic error for cross section of 0.60 PCT (efficiencies and backgrounds) and 0.14 PCT (absolute luminosity). Additional systematic error for the asymmetry of 0.0020.
"Table 3" of "Measurement of inclusive K*(892)0, Phi(1020) and K*2(1430)0 production in hadronic Z decays."
1996
SIG in (1/SIG) is the total hadronic cross section. The statistical and systematic erros are combined quadratically. For 0.05
"Table 1" of "Study of the Leptonic Decays of the $Z^0$ Boson"
1990
E+ E- final state is t-channel subtracted.
"Table 17" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
MU+ MU- forward-backward asymmetries from the 1991 data set, derived from a maximum likelihood fit to the angular distributions, corrected to full solid angle but not for cuts on momenta and accollinearity. Additional systematic error 0.003.
"Table 17" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Differential 2-Jet Rate Jade Alogrithm D2(Jad).
"Table 14" of "Investigation of the splitting of quark and gluon jets."
1998
Ratio of Splitting Functions for Gluon jets and Quark jets as a function ofthe jet resolution parameter ycut in 'Y' topology events.
"Table 1" of "Determination of alpha-s from the scaling violation in the fragmentation functions in e+ e- annihilation"
1995
No description provided.
"Table 1" of "Search for promptly produced heavy quarkonium states in hadronic Z decays"
1996
The analysis of hadrons (from X) provides to distinguish of the various decay modes of Z-boson (see text).
"Table 24" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distribution of Planarity at cm energy 183 GeV.
"Table 8" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
Rapidity, YS, w.r.t. Sphericity axis distribution. Axis definition is from corrected charged plus neutral particles.
"Table 4" of "Measurement of inclusive production of light meson resonances in hadronic decays of the Z0"
1993
Average multiplicity per hadronic event. Extrapolation to x = 0 using the x shape predicted by JETSET 7.3 PS.
"Table 22" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distribution of Sphericity at cm energy 183 GeV.
"Table 11" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Moments of the Jet Broadening Difference (BDIFF) distributions at cm energies 133, 161, 172 and 183 GeV.
"Table 7" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Oblateness O.
"Table 9" of "Measurement of inclusive production of light meson resonances in hadronic decays of the Z0"
1993
Numerical values of data supplied by J. Augustin.
"Table 12" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Thrust Major distribution. Corrected to final state particles.
"Table 26" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Difference of the Hemisphere Broadening, BDIFF. Corrected to final state particles.
"Table 2" of "Determination of $alpha_{s}$ in second order {QCD} from hadronic $Z$ decays"
1992
Experimental differential Oblateness distributions.
"Table 3" of "Identified Charged Particles in Quark and Gluon Jets"
2003
Jet flavor tagging is used. (C=DUSCB), (C=DUSC), (C=UDS) mean quark-jet flavors. CONST(C=GLUON/JET) is the ratio gluon/jet for all charged particles. 'Y' events, mirror symmetric events, the angle between the most energetic jet and other two jets is 150 +- 15 deg.
"Table 2" of "First measurement of f2-prime (1525) production in Z0 hadronic decays"
1996
No description provided.
"Table 6" of "Strange baryon production in Z hadronic decays"
1995
No description provided.
"Table 46" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
XP distribution for RHO0 production.. Data read from plot.
"Table 8" of "Cross-sections and leptonic forward-backward asymmetries from the Z0 running of LEP."
2000
Cross section and forward-backward asymmetry in the MU+ MU- channel for the1994 data. The polar angle is 20 to 160 degrees. Additional systematic error for cross section of 0.26 PCT (efficiencies and backgrounds) and 0.14 PCT (absolute luminosity). Additional systematic error for the asymmetry of 0.0005.
"Table 4" of "Charged particle multiplicity distributions in restricted rapidity intervals in Z0 hadronic decays."
1992
Data for both hemispheres.
"Table 2" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Transverse momentum PTOUT w.r.t. the Thrust axis. For the first table Thrust axis definition is from seen charged particles corrected to final state particles. For the second table Thrust axis definition is from seen charged plus neutral particles corrected to final state charged plus neutral particles.
"Table 1" of "Measurements of the tau polarization in Z0 decays"
1995
Results are for both TAU+ and TAU- decay.
"Table 20" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Heavy-Hemisphere-Mass distribution. Corrected to final state particles.
"Table 1" of "A Measurement of the photon structure function F2(gamma) at an average Q**2 of 12-GeV**2/c**4"
1995
No description provided.
"Table 3" of "Study of Dimuon Production in Photon-Photon Collisions and Measurement of QED Photon Structure Functions at LEP"
2001
Ratio of the structure functions FA and FB to F2.
"Table 3" of "Measurement and Interpretation of Fermion-Pair Production at LEP Energies of 183 and 189 GeV"
2003
No description provided.
"Table 1" of "Observation of orbitally excited B mesons"
1996
No description provided.
"Table 14" of "Cross-sections and leptonic forward-backward asymmetries from the Z0 running of LEP."
2000
Measurement of the forward-backward asymmetry for the 1991 to 1995 data from the ISR events.
"Table 41" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distributions of the C-parameter (C-PARAM) at cm energies 133, 161 and 172 GeV.
"Table 10" of "Measurement of inclusive production of light meson resonances in hadronic decays of the Z0"
1993
Numerical values of data supplied by J. Augustin.
"Table 3" of "Production characteristics of K0 and light meson resonances in hadronic decays of the Z0"
1993
Average multiplicity per hadronic event. Extrapolation to the full X range using the X-shape predicted by JETSET 7.4 PS model.
"Table 11" of "Production characteristics of K0 and light meson resonances in hadronic decays of the Z0"
1993
No description provided.
"Table 1" of "Production of strange particles in the hadronic decays of the Z0"
1992
No description provided.
"Table 10" of "Cross-sections and leptonic forward-backward asymmetries from the Z0 running of LEP."
2000
Cross section and forward-backward asymmetry in the TAU+ TAU- channel for the 1993 data. Additional systematic error for cross section of 0.60 PCT (efficiencies and backgrounds) and 0.29 PCT (absolute luminosity). Additional systematic error for the asymmetry of 0.0020.
"Table 1" of "The scale dependence of the hadron multiplicity in quark and gluon jets and a precise determination of C(A)/C(F)."
1999
Charged multiplicity in events with a hard photon, as a function of the apparent centre-of-mass energy (SQRT(S)) of the hadronic system. The errors shown are statistical only.
"Table 21" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distributions of Sphericity at cm energies 133, 161 and 172 GeV.
"Table 43" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
XP distribution for K*(892)0 production.. Data read from plot.
"Table 9" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
E+ E- forward-backward asymmetries from the 1990 data set after t-channel subtraction with only the E- constraint by polar angle 44 to 136 degrees and accollinearity < 10 degrees. Additional systematic error, excluding luminosity, is 0.003 at the peak.
"Table 24" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
LEPTON+ LEPTON- forward-backward asymmetries from the 1990 data set. Data are corrected for t-channel subtraction, and to full solid angle but not for momenta and accollinearity cuts. Additional systematic uncertainty, excluding luminosity, is 0.005.
"Table 9" of "Identified Charged Particles in Quark and Gluon Jets"
2003
Jet flavor tagging is used. 'Y' events, mirror symmetric events, the angle between the most energetic jet and other two jets is 150 +- 15 deg.. CONST(NAME=XISTAR) is maximum of log(P(C=CHARGED)/P(C=JET)) distribution.
"Table 4" of "Determination of $alpha_{s}$ in second order {QCD} from hadronic $Z$ decays"
1992
Experimental differential heavy jet mass distributions.
"Table 2" of "Determination of alpha-s from the scaling violation in the fragmentation functions in e+ e- annihilation"
1995
Extraction of strong coupling constant ALP_S and the LAMQCD)MSBAR values.
"Table 36" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Compilation of multiplicities of pseudoscalar mesons from current LEP I data.
"Table 7" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Scaled momentum distribution, XP. Corrected to final state charged particles.
"Table 9" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
Transverse momentum PTIN w.r.t. the Thrust axis. Axis definition is from corrected charged plus neutral particles.
"Table 8" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Moments of the Wide Jet Broadening (BMAX) distributions at cm energies 133, 161, 172 and 183 GeV.
"Table 18" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
TAU+ TAU- cross sections from the 1990 data set corrected for full solid angle. Additional systematic uncertainty is 1.2 pct.
"Table 3" of "Search for exclusive charmless B meson decays with the DELPHI detector at LEP"
1995
Four body decay modes. Upper limits at 90% CL.
"Table 2" of "Measurement of inclusive production of light meson resonances in hadronic decays of the Z0"
1993
Average multiplicity per hadronic event. Extrapolation to x = 0 using the x shape predicted by JETSET 7.3 PS.
"Table 13" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Total Jet Broadening BSUM.
"Table 7" of "Measurements of the tau polarization in Z0 decays"
1995
Combination of current result with the TAU polarization value obtained from the analysis on 1990 data ( ZP C55, 555), assuming fully correlated systematic errors and lepton universality.
"Table 2" of "Measurement of the forward - backward asymmetry of e+ e- ---> Z ---> b anti-b using prompt leptons and a lifetime tag"
1996
No description provided.
"Table 1" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Moments of the (1-THRUST) distributions at cm energies 133, 161, 172 and 183 GeV.
"Table 9" of "Production characteristics of K0 and light meson resonances in hadronic decays of the Z0"
1993
Systematic errors are included in quadrature.
"Table 25" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distributions of Aplanarity at cm energies 133, 161 and 172 GeV.
"Table 23" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
LEPTON+ LEPTON- cross sections from the 1991 data set. Data are corrected for t-channel subtraction, and to full solid angle but not for momenta and accollinearity cuts. Additional systematic uncertainty, excluding luminosity, is 0.4 pct.
"Table 1" of "Energy dependence of the differences between the quark and gluon jet fragmentation"
1998
No description provided.
"Table 2" of "Improved measurements of cross-sections and asymmetries at the Z0 resonance"
2000
First result corresponds to the total cross section (i.e. S+T channel), while second one corresponds to S-channel only. An acollinearity less that 10 deg.
"Table 1" of "Charged particle multiplicity in e+ e- --> q anti-q events at 161-GeV and 172-GeV and from the decay of the W boson."
1997
No description provided.
"Table 13" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
MU+ MU- cross sections from the 1991 data set corrected to 4pi acceptance.
"Table 2" of "Measurement of inclusive pi0 production in hadronic Z0 decays"
1995
Mean PI0 multiplicity extrapolated below 0.011 with JETSET 7.3.
"Table 2" of "Production characteristics of K0 and light meson resonances in hadronic decays of the Z0"
1993
Average multiplicity per hadronic event. Extrapolation to the full X range using the X-shape predicted by JETSET 7.4 PS model.
"Table 1" of "Production characteristics of K0 and light meson resonances in hadronic decays of the Z0"
1993
Average multiplicity per hadronic event. Extrapolation to the full X range using the X-shape predicted by JETSET 7.4 PS model.
"Table 4" of "Measurement and Interpretation of Fermion-Pair Production at LEP Energies of 183 and 189 GeV"
2003
No description provided.
"Table 8" of "Investigation of the splitting of quark and gluon jets."
1998
Total 1-jet rate for Quark jets as a function of the jet resolution parameter ycut in 'Y' topology events.
"Table 1" of "Measurement of inclusive production of light meson resonances in hadronic decays of the Z0"
1993
Average multiplicity per hadronic event. Extrapolation to x = 0 using the x shape predicted by JETSET 7.3 PS.
"Table 4" of "Cross-sections and leptonic forward-backward asymmetries from the Z0 running of LEP."
2000
Cross section and forward-backward asymmetry in the E+ E- channel for the 1993 data. The polar angle is 44 to 136 degrees. Additional systematic error for cross section of 0.46 PCT (efficiencies and backgrounds) and 0.29 PCT (absolute luminosity). Additional systematic error for the asymmetry of 0.0026.
"Table 1" of "Measurement and interpretation of the W pair cross-section in e+ e- interactions at 161-GeV"
1997
No description provided.
"Table 26" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distribution of Aplanarity at cm energy 183 GeV.
"Table 7" of "Cross-sections and leptonic forward-backward asymmetries from the Z0 running of LEP."
2000
Cross section and forward-backward asymmetry in the MU+ MU- channel for the1993 data. The polar angle is 20 to 160 degrees. Additional systematic error for cross section of 0.28 PCT (efficiencies and backgrounds) and 0.29 PCT (absolute luminosity). Additional systematic error for the asymmetry of 0.0009.
"Table 1" of "Measurement of the partial width of the decay of the Z0 into charm quark pairs"
1996
No description provided.
"Table 7" of "Production characteristics of K0 and light meson resonances in hadronic decays of the Z0"
1993
No description provided.
"Table 9" of "Improved measurements of cross-sections and asymmetries at the Z0 resonance"
2000
The asymmetry is presented for one flavour.
"Table 3" of "Strange baryon production in Z hadronic decays"
1995
No description provided.
"Table 21" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Energy Energy Correlation EEC.
"Table 3" of "Masses, lifetimes and production rates of Xi- and anti-Xi+ at LEP 1."
2007
Extrapolated production rate in b-bbar events.
"Table 2" of "Photon Events with Missing Energy at sqrt(s) = 183 to 189 GeV"
2003
Combined result.
"Table 51" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
XP distribution for P production.. Data read from plot.
"Table 2" of "A precise measurement of the tau polarisation at LEP-1."
2003
No description provided.
"Table 2" of "Charged particle multiplicity distributions in restricted rapidity intervals in Z0 hadronic decays."
1992
Data for both hemispheres.
"Table 6" of "Production characteristics of K0 and light meson resonances in hadronic decays of the Z0"
1993
No description provided.
"Table 7" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
Inclusive charged particle distributions, corrected to final state charged particles.
"Table 1" of "Improved measurements of cross-sections and asymmetries at the Z0 resonance"
2000
No description provided.
"Table 7" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Moments of the Jet Mass Differences (MDIFF**2/EVIS**2) distributions at cm energies 133, 161, 172 and 183 GeV.
"Table 2" of "Measurements of the tau polarization in Z0 decays"
1995
The systematic error contains a systematic error of 0.003 common to all channels.
"Table 49" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
LOG(1/XP) distribution for P production.. Data read from plot.
"Table 1" of "Strange baryon production in Z hadronic decays"
1995
No description provided.
"Table 10" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Moments of the the Total Jet Broadening (BSUM) distributions at cm energies 133, 161, 172 and 183 GeV.
"Table 2" of "Cross-sections and leptonic forward-backward asymmetries from the Z0 running of LEP."
2000
Hadronic cross section measured with the 1994 data. Additional systematic error of 0.11 PCT (efficiencies and backgrounds) and 0.11 PCT (absolute luminosity).
"Table 5" of "Cross-sections and leptonic forward-backward asymmetries from the Z0 running of LEP."
2000
Cross section and forward-backward asymmetry in the E+ E- channel for the 1994 data. The polar angle is 44 to 136 degrees. Additional systematic error for cross section of 0.52 PCT (efficiencies and backgrounds) and 0.14 PCT (absolute luminosity). Additional systematic error for the asymmetry of 0.0021.
"Table 7" of "Identified Charged Particles in Quark and Gluon Jets"
2003
Jet flavor tagging is used. (C=DUSCB), (C=DUSC), (C=UDS) mean quark-jet flavors. CONST(C=GLUON/JET) is the ratio gluon/jet for all charged particles. 'Mercedes' events, three-fold symmetric events, the angle between three jets is 120 +- 15 deg.
"Table 31" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distributions of the Jet Mass Differences (MDIFF**2/EVIS**2) at cm energies 133, 161 and 172 GeV.
"Table 36" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distribution of the Small Jet Broadening (BMIN) at cm energy 183 GeV.
"Table 8" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
E+ E- forward-backward asymmetries from the 1991 data set for both final state fermions in the polar angle range 44 to 136 degrees and accollinearity < 10 degrees (the s + t data). Additional systematic error, excluding luminosity, is 0.002.
"Table 1" of "A Comparison of jet production rates on the Z0 resonance to perturbative QCD"
1990
Corrected jet rates.
"Table 56" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
XP distribution for XI(1530)0 production.. Data read from plot.
"Table 16" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
MU+ MU- forward-backward asymmetries from the 1990 data set, derived from a maximum likelihood fit to the angular distributions, corrected to full solid angle but not for cuts on momenta and accollinearity. Additional systematic error 0.005.
"Table 1" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
The weighted value of ALPHA-S from all the measured observables using experimentally optimized renormalization scale values and corrected for the b-mass toleading order.
"Table 5" of "Production characteristics of K0 and light meson resonances in hadronic decays of the Z0"
1993
Average multiplicity per hadronic event. Extrapolation to the full X range using the X-shape predicted by JETSET 7.4 PS model. Systematic errors are included in quadrature.
"Table 11" of "Cross-sections and leptonic forward-backward asymmetries from the Z0 running of LEP."
2000
Cross section and forward-backward asymmetry in the TAU+ TAU- channel for the 1994 data. Additional systematic error for cross section of 0.60 PCT (efficiencies and backgrounds) and 0.14 PCT (absolute luminosity). Additional systematic error for the asymmetry of 0.0020.
"Table 13" of "Cross-sections and leptonic forward-backward asymmetries from the Z0 running of LEP."
2000
Measurement of the observed Born cross section for the 1992-1995 data from the ISR events. SPRIME is the reduced energy after the ISR.
"Table 17" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Planarity distribution. Corrected to final state particles.
"Table 8" of "Production characteristics of K0 and light meson resonances in hadronic decays of the Z0"
1993
Systematic errors are included in quadrature.
"Table 25" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
LEPTON+ LEPTON- forward-backward asymmetries from the 1991 data set. Data are corrected for t-channel subtraction, and to full solid angle but not for momenta and accollinearity cuts. Additional systematic uncertainty, excluding luminosity, is 0.0025.
"Table 15" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distributions of Thrust Major (MAJOR) at cm energies 133, 161 and 172 GeV.
"Table 3" of "A Measurement of the tau leptonic branching fractions"
1995
Combined from the two branching fractions above. E-MU universality assumed.
"Table 10" of "Production characteristics of K0 and light meson resonances in hadronic decays of the Z0"
1993
No description provided.
"Table 40" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distribution of the Jet Broadening Difference (BDIFF) at cm energy 183 GeV.
"Table 6" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Rapidity, YS, w.r.t. the Sphericity axis. For the first table Sphericity axis definition is from seen charged particles corrected to final state particles. For the second table Sphericity axis definition is from seen charged plus neutral particles corrected to final state charged plus neutral particles.
"Table 6" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
Integral of event shape distribution over the specified interval.
"Table 11" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
MU+ MU- cross sections from the 1990 data set, for 4pi detection (corrected for the cuts on momenta and accollinearity). Additional systematic uncertainty, excluding luminosity, is 0.8 pct.
"Table 1" of "Measurement of the spin density matrix for the rho0, K*(892)0 and Phi produced in Z0 decays."
1997
Helicity density matrices elements. The statistical and systematic errors are combined quadratically.
"Table 3" of "Charged particle multiplicity distributions in restricted rapidity intervals in Z0 hadronic decays."
1992
Data for both hemispheres.
"Table 3" of "Measurement of the spin density matrix for the rho0, K*(892)0 and Phi produced in Z0 decays."
1997
Helicity density matrices elements. The statistical and systematic errors are combined quadratically.
"Table 5" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Moments of the Heavy Jet Mass (MH**2/EVIS**2) distributions at cm energies 133, 161, 172 and 183 GeV.
"Table 2" of "Identified Charged Particles in Quark and Gluon Jets"
2003
Jet flavor tagging is used. (C=DUSCB), (C=DUSC), (C=UDS) mean quark-jet flavors. CONST(C=GLUON/JET) is the ratio gluon/jet for all charged particles. 'Y' events, mirror symmetric events, the angle between the most energetic jet and other two jets is 150 +- 15 deg.
"Table 1" of "Measurement of trilinear gauge boson couplings W W V, (V = Z, gamma) in e+ e- collisions at 189-GeV."
2003
No description provided.
"Table 2" of "Investigation of the splitting of quark and gluon jets."
1998
Scaled energy distribution of charged hadrons produced in Gluon jets in 'Y'topology 3-JET events.
"Table 6" of "Measurements of the tau polarization in Z0 decays"
1995
Combination of current result with the TAU polarization value obtained from the analysis on 1990 data ( ZP C55, 555), assuming fully correlated systematic errors.
"Table 8" of "Determination of $alpha_{s}$ in second order {QCD} from hadronic $Z$ decays"
1992
The differential 2-jet rate D2 as a function of YCUT.
"Table 10" of "Improved measurements of cross-sections and asymmetries at the Z0 resonance"
2000
No description provided.
"Table 2" of "Study of Dimuon Production in Photon-Photon Collisions and Measurement of QED Photon Structure Functions at LEP"
2001
The measured QED photon structure function at Q**2 = 120 GeV for the combine SAT and STIC data.
"Table 2" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
The value of ALPHA-S derived from the JCEF and corrected for heavy quark mass effects. The quoted errors are respectively due to experimental error, hadronization, renormalization scale and heavy quark mass correction uncertainties.
"Table 3" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Moments of the Thrust Minor distributions at cm energies 133, 161, 172 and 183 GeV.
"Table 26" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
The systematic error shown for SIN2TW is due to the uncertainty in the Higgs mass.
"Table 8" of "Improved measurements of cross-sections and asymmetries at the Z0 resonance"
2000
The cross section is measured in 4PI solid angle. The cross sections is presented for one flavour.
"Table 29" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Differential 3-jet rate for the Durham Algorithm. Corrected to final state particles. YCUT is the jet finding cutt-off parameter.
"Table 15" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
Wide Hemisphere Broadening, DBMAX. Axis definition is from charged corrected plus neutral particles.
"Table 15" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Differential 2-Jet Rate P0 Scheme D2(P0).
"Table 3" of "Measurement of inclusive production of light meson resonances in hadronic decays of the Z0"
1993
Average multiplicity per hadronic event. Extrapolation to x = 0 using the x shape predicted by JETSET 7.3 PS.
"Table 47" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
XP distribution for F0(980) production.. Data read from plot.
"Table 45" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
XE distribution for PHI production.. Data read from plot.
"Table 33" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distributions of the Wide Jet Broadening (BMAX) at cm energies 133, 161 and 172 GeV.
"Table 7" of "Determination of $alpha_{s}$ in second order {QCD} from hadronic $Z$ decays"
1992
The energy-energy correlation EEC as a function of the correlation angle CHI.
"Table 13" of "Investigation of the splitting of quark and gluon jets."
1998
Splitting Function for Gluon jets as a function of the jet resolution parameter ycut in 'Y' topology events.
"Table 4" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Moments of the Oblateness distributions at cm energies 133, 161, 172 and 183 GeV.
"Table 39" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Compilation of multiplicities of tensor mesons from current LEP I data.
"Table 2" of "W pair production cross-section and W branching fractions in e+ e- interactions at 189-GeV."
2000
Cross section for the different decay channels.
"Table 1" of "First measurement of f2-prime (1525) production in Z0 hadronic decays"
1996
SIG in (1/SIG) is the total hadronic cross section.
"Table 3" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
E+ E- cross sections from the 1990 data set for both final state fermions in the polar angle range 44 to 136 degrees and accollinearity < 10 degrees (the s + t data).
"Table 23" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distributions of Planarity at cm energies 133, 161 and 172 GeV.
"Table 38" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Compilation of multiplicities of vector mesons from current LEP I data.
"Table 32" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distribution of the Jet Mass Differences (MDIFF**2/EVIS**2) at cm energy 183 GeV.
"Table 2" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
Hadronic cross sections from the 1991 data set. Additional systematic uncertainties come from efficiencies and background of 0.2 pct in addition to the luminosity uncertainty 0.6 pct.
"Table 1" of "A Precise Measurement of the $Z$ Resonance Parameters Through Its Hadronic Decays"
1990
No description provided.
"Table 5" of "Measurement of inclusive K*(892)0, Phi(1020) and K*2(1430)0 production in hadronic Z decays."
1996
Average Multiplicities.
"Table 1" of "Photon Events with Missing Energy at sqrt(s) = 183 to 189 GeV"
2003
No description provided.
"Table 5" of "Identified Charged Particles in Quark and Gluon Jets"
2003
Jet flavor tagging is used. (C=DUSCB), (C=DUSC), (C=UDS) mean quark-jet flavors. CONST(C=GLUON/JET) is the ratio gluon/jet for all charged particles. 'Mercedes' events, three-fold symmetric events, the angle between three jets is 120 +- 15 deg.
"Table 17" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distributions of Thrust Minor (MINOR) at cm energies 133, 161 and 172 GeV.
"Table 6" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
1 - Thrust (1-T).
"Table 25" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Asymmetry of the Energy Energy Correlation AEEC.
"Table 11" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
1-Thrust distribution. Axis definition is from corrected charged plus neutral particles.
"Table 1" of "A precise measurement of the tau polarisation at LEP-1."
2003
The errors are statistical and systematic combined in quadrature.
"Table 2" of "The scale dependence of the hadron multiplicity in quark and gluon jets and a precise determination of C(A)/C(F)."
1999
Charged multiplicity in symmetric three jet events as function of the opening angle between the low energetic jets, THETA1. Jets are defined from charged and neutral particles using the DURHAM algorithm. The errors shown are statistical only.
"Table 20" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
3-jet rate for the Durham Algorithm.
"Table 24" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Narrow Hemisphere Broadening, BMIN. Corrected to final state particles.
"Table 7" of "Measurement and Interpretation of Fermion-Pair Production at LEP Energies of 183 and 189 GeV"
2003
No description provided.
"Table 2" of "Production of strange particles in the hadronic decays of the Z0"
1992
No description provided.
"Table 4" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Asymmetry of the Energy Energy Correlation AEEC.
"Table 18" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Differential 2-Jet Rate Durham Alogrithm D2(Dur).
"Table 34" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distribution of the Wide Jet Broadening (BMAX) at cm energy 183 GeV.
"Table 6" of "Charged particle multiplicity distributions in restricted rapidity intervals in Z0 hadronic decays."
1992
Data for single hemisphere.
"Table 50" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
LOG(1/XP) distribution for LAMBDA production.. Data read from plot.
"Table 1" of "A Measurement of the b anti-b forward backward asymmetry using the semileptonic decay into muons"
1992
Experimentally measured asymmetry.
"Table 6" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Moments of the Light Jet Mass (ML**2/EVIS**2) distributions at cm energies 133, 161, 172 and 183 GeV.
"Table 3" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Transverse momentum PTIN w.r.t. the Sphericity axis. For the first table Sphericity axis definition is from seen charged particles corrected to final state particles. For the second table Sphericity axis definition is from seen charged plus neutral particles corrected to final state charged plus neutral particles.
"Table 29" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distributions of the Light Jet Masses (ML**2/EVIS**2) at cm energies 133, 161 and 172 GeV.
"Table 10" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
Transverse momentum PTOUT w.r.t. the Thrust axis. Axis definition is from corrected charged plus neutral particles.
"Table 18" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distribution of Thrust Minor (MINOR) at cm energy 183 GeV.
"Table 2" of "Search for exclusive charmless B meson decays with the DELPHI detector at LEP"
1995
Three body decay modes. Upper limits at 90% CL.
"Table 32" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Jet Cone Energy Fraction.
"Table 44" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distribution of the D-parameter (D-PARAM) at cm energy 183 GeV.
"Table 2" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
Integral of event shape distribution over the specified interval.
"Table 14" of "Charged particle multiplicity distributions in restricted rapidity intervals in Z0 hadronic decays."
1992
Multiplicity moments in central rapidity intervals.. CQ is defined as MEAN(MULT**Q)/MEAN(MULT)**Q.
"Table 10" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Mean PT V XP. Corrected to final state charged particles.
"Table 1" of "Determination of $alpha_{s}$ in second order {QCD} from hadronic $Z$ decays"
1992
Experimental differential Thrust distributions.
"Table 15" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
MU+ MU- forward-backward asymmetries from the 1991 data set, derived by counting the number of muons in the forward-backward hemispheres, corrected to full solid angle but not for cuts on momenta and accollinearity. Additional systematic error 0.003.
"Table 6" of "Measurement of inclusive K*(892)0, Phi(1020) and K*2(1430)0 production in hadronic Z decays."
1996
Average Multiplicities.
"Table 6" of "Measurement and Interpretation of Fermion-Pair Production at LEP Energies of 183 and 189 GeV"
2003
No description provided.
"Table 1" of "Investigation of the splitting of quark and gluon jets."
1998
Scaled energy distribution of charged hadrons produced in Quark jets in 'Y'topology 3-JET events.
"Table 1" of "A measurement of alpha(s) from the scaling violation in e+ e- annihilation."
1996
SIG(Q=BQ, Q=CQ, Q=UDS) corresponds to BQ, CQ, and U,D,S quarks fragmentation into charged hadron.
"Table 2" of "A Measurement of the b anti-b forward backward asymmetry using the semileptonic decay into muons"
1992
Asymmetry corrected for mixing using mixing parameter 0.143 +- 0.023.
"Table 8" of "Measurement of inclusive production of light meson resonances in hadronic decays of the Z0"
1993
Numerical values of data supplied by J. Augustin.
"Table 19" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Differential 2-Jet Rate Geneva Alogrithm D2(Gen).
"Table 7" of "Investigation of the splitting of quark and gluon jets."
1998
Ratio of the sub-jet multiplicity-1 for gluon jets to the sub-jet multiplicity-1 for quark jets as a function of the jet resolution parameter ycut in 'Y' topology events.
"Table 20" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distribution of Oblateness at cm energy 183 GeV.
"Table 1" of "Study of Dimuon Production in Photon-Photon Collisions and Measurement of QED Photon Structure Functions at LEP"
2001
The measured QED photon structure function at Q**2 = 12.5 GeV for the combine SAT and STIC data.
"Table 2" of "Study of the Leptonic Decays of the $Z^0$ Boson"
1990
No t-channel subtraction. Statistical errors only.
"Table 41" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
LOG(1/XP) distribution for K0 production.. Data read from plot.
"Table 14" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Differential 2-Jet Rate E0 Scheme D2(E0).
"Table 1" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
mean values for event shape variables.
"Table 25" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
4-jet rate for the Jade Algorithm.
"Table 4" of "Identified Charged Particles in Quark and Gluon Jets"
2003
Jet flavor tagging is used. (C=DUSCB), (C=DUSC), (C=UDS) mean quark-jet flavors. CONST(C=GLUON/JET) is the ratio gluon/jet for all charged particles. 'Y' events, mirror symmetric events, the angle between the most energetic jet and other two jets is 150 +- 15 deg.
"Table 5" of "Determination of $alpha_{s}$ in second order {QCD} from hadronic $Z$ decays"
1992
Difference of the heavy and light jet mass.
"Table 9" of "Measurements of the tau polarization in Z0 decays"
1995
Ratio of vector and axial-vector constants for electrons.
"Table 5" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Rapidity, YT, w.r.t. the Thrust axis. For the first table Thrust axis definition is from seen charged particles corrected to final state particles. For the second table Thrust axis definition is from seen charged plus neutral particles corrected to final state charged plus neutral particles.
"Table 22" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
LEPTON+ LEPTON- cross sections from the 1990 data set. Data are corrected for t-channel subtraction, and to full solid angle but not for momenta and accollinearity cuts. Additional systematic uncertainty, excluding luminosity, is 0.6 pct.
"Table 16" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Differential 2-Jet Rate P Scheme D2(P).
"Table 39" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distributions of the Jet Broadening Difference (BDIFF) at cm energies 133, 161 and 172 GeV.
"Table 2" of "Energy dependence of the differences between the quark and gluon jet fragmentation"
1998
Durham and JADE algoritms were used.
"Table 16" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Aplanarity distribution. Corrected to final state particles.
"Table 17" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
Total Hemisphere Broadening, DBSUM. Axis definition is from charged corrected plus neutral particles.
"Table 5" of "Investigation of the splitting of quark and gluon jets."
1998
Subjet multiplicity-1 as a function of the jet resolution parameter ycut for Quark jets in 'Y' topology events.
"Table 22" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Difference in Hemisphere Masses. Corrected to final state particles.
"Table 42" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
LOG(1/XP) distribution for K+- production.. Data read from plot.
"Table 37" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distributions of the Total Jet Broadening (BSUM) at cm energies 133, 161 and 172 GeV.
"Table 8" of "Charged particle multiplicity distributions in restricted rapidity intervals in Z0 hadronic decays."
1992
Data for single hemisphere.
"Table 2" of "Measurement of the spin density matrix for the rho0, K*(892)0 and Phi produced in Z0 decays."
1997
Helicity density matrices elements. The statistical and systematic errors are combined quadratically.
"Table 48" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
XP distribution for F2(1270) production.. Data read from plot.
"Table 18" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
Difference of the Hemisphere Broadening, DBDIFF. Axis definition is from charged corrected plus neutral particles.
"Table 2" of "A Measurement of the tau leptonic branching fractions"
1995
Axis error includes +- 0.19/0.19 contribution (Data statistics).
"Table 23" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
2-jet rate for the Jade Algorithm.
"Table 6" of "Investigation of the splitting of quark and gluon jets."
1998
Subjet multiplicity-1 as a function of the jet resolution parameter ycut for Gluon jets in 'Y' topology events.
"Table 5" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
E+ E- cross sections from the 1990 data set after t-channel subtraction with only the E- constraint by polar angle 44 to 136 degrees and accollinearity < 10 degrees. Additional systematic error, excluding luminosity, is 1.0 pct at the peak.
"Table 1" of "Measurement of the forward - backward asymmetry of e+ e- ---> Z ---> b anti-b using prompt leptons and a lifetime tag"
1996
No description provided.
"Table 9" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Mean PTOUT V XP. Corrected to final state charged particles.
"Table 40" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Compilation of multiplicities of baryons from current LEP I data.
"Table 8" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
LN(1/XP) distribution. Corrected to final state charged particles.
"Table 8" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
C-Parameter C.
"Table 4" of "Single intermediate vector boson production in e+ e- collisions at s**(1/2) = 183-GeV and 189-GeV."
2000
Cross sections for single-Z0 production in the leptonic channel.
"Table 37" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Compilation of multiplicities of scalar mesons from current LEP I data.
"Table 15" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Sphericity distribution. Corrected to final state particles.
"Table 21" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
4-jet rate for the Durham Algorithm.
"Table 42" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distribution of the C-parameter (C-PARAM) at cm energy 183 GeV.
"Table 3" of "Investigation of the splitting of quark and gluon jets."
1998
Scaled energy distribution of charged hadrons produced in Quark jets in 'Mercedes' topology 3-JET events.
"Table 10" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
E+ E- forward-backward asymmetries from the 1991 data set after t-channel subtraction with only the E- constraint by polar angle 44 to 136 degrees and accollinearity < 10 degrees. Additional systematic error, excluding luminosity, is 0.003 at the peak.
"Table 54" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
XP distribution for DEL++ production.. Data read from plot.
"Table 19" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distributions of Oblateness at cm energies 133, 161 and 172 GeV.
"Table 33" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Energy-Energy Correlation EEC. Corrected to final state particles.
"Table 25" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Total Hemisphere Broadening, BSUM. Corrected to final state particles.
"Table 12" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Moments of the C-parameter (C-PARAM) distributionss at cm energies 133, 161, 172 and 183 GeV.
"Table 9" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Moments of the Small Jet Broadening (BMIN) distributions at cm energies 133, 161, 172 and 183 GeV.
"Table 2" of "Single intermediate vector boson production in e+ e- collisions at s**(1/2) = 183-GeV and 189-GeV."
2000
Cross sections for the E NU E NU channel, which includes contributions from both single-W and from single-Z0 with a large interference bewteen the two processes.
"Table 33" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
1 - Thrust (1-T).
"Table 1" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Transverse momentum PTIN w.r.t. the Thrust axis. For the first table Thrust axis definition is from seen charged particles corrected to final state particles. For the second table Thrust axis definition is from seen charged plus neutral particles corrected to final state charged plus neutral particles.
"Table 11" of "Investigation of the splitting of quark and gluon jets."
1998
Differential 1-jet rate for Gluon jets as a function of the jet resolution parameter ycut in 'Y' topology events.
"Table 7" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
E+ E- forward-backward asymmetries from the 1990 data set for both final state fermions in the polar angle range 44 to 136 degrees and accollinearity < 10 degrees (the s + t data).
"Table 52" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
XP distribution for LAMBDA production.. Data read from plot.
"Table 2" of "Measurement of Delta++ (1232) production in hadronic Z decays"
1995
Mean multiplicities. Extrapolation to full x range using a combination of JETSET, HERWIG and UCLA models. The second systematic error comes from the uncertainty in the extrapolation.
"Table 1" of "Identified Charged Particles in Quark and Gluon Jets"
2003
Jet flavor tagging is used. (C=DUSCB), (C=DUSC), (C=UDS) mean quark-jet flavors. CONST(C=GLUON/JET) is the ratio gluon/jet for all charged particles. 'Y' events, mirror symmetric events, the angle between the most energetic jet and other two jets is 150 +- 15 deg.
"Table 22" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Energy Energy Correlation EEC.
"Table 12" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Wide Jet Broadening BMAX.
"Table 2" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Moments of the Thrust Major distributions at cm energies 133, 161, 172 and 183 GeV.
"Table 1" of "Single intermediate vector boson production in e+ e- collisions at s**(1/2) = 183-GeV and 189-GeV."
2000
Cross sections for single-W production in the (E- NUEBAR Q QBAR + CC) and (E- NUEBAR LEPTON LEPTONBAR) + CC) channels.
"Table 7" of "Strange baryon production in Z hadronic decays"
1995
No description provided.
"Table 1" of "Cross-sections and leptonic forward-backward asymmetries from the Z0 running of LEP."
2000
Hadronic cross section measured with the 1993 data. Additional systematic error of 0.10 PCT (efficiencies and backgrounds) and 0.29 PCT (absolute luminosity).
"Table 16" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distribution of Thrust Major (MAJOR) at cm energy 183 GeV.
"Table 2" of "A Comparison of jet production rates on the Z0 resonance to perturbative QCD"
1990
Second systematic error is theoretical.
"Table 26" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
5-jet rate for the Jade Algorithm.
"Table 13" of "Charged particle multiplicity distributions in restricted rapidity intervals in Z0 hadronic decays."
1992
Data for single hemisphere. All rapidity regions.
"Table 2" of "A measurement of alpha(s) from the scaling violation in e+ e- annihilation."
1996
alpha_s was evaluated from the scaling violation of the fragmentation func tions. The data from other experiments are used for the fitting procedure.
"Table 3" of "A Measurement of the b anti-b forward backward asymmetry using the semileptonic decay into muons"
1992
SIN2TW measured in MSBAR scheme.
"Table 23" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Wide Hemisphere Broadening, BMAX. Corrected to final state particles.
"Table 4" of "Measurements of the tau polarization in Z0 decays"
1995
TAU and Z polarization values was obtained as a result of fit of the POL(cos(theta)) distribution to the formula Ptau(COS(THETA)) = (Ptau*(1+cos**2(theta))+Pz*2*cos(theta))/ ((1+cos**2(theta))+Ptau*Pz*2*cos(theta)). Results are corrected for QED effects and for the center-of-mass energies different to M(Z) with the program ZFITTER.. The first error is statistical, the second is due to the simulated data statistics and the third due to all other systematic uncertainties.
"Table 3" of "Determination of $alpha_{s}$ in second order {QCD} from hadronic $Z$ decays"
1992
Experimental differential C-parameter distributions.
"Table 46" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
ALPHAS from the higher energies extrapolated to the Z0 mass. The second systematic (DSYS) error is the scale error.
"Table 43" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distributions of the D-parameter (D-PARAM) at cm energies 133, 161 and 172 GeV.
"Table 5" of "Charged particle multiplicity distributions in restricted rapidity intervals in Z0 hadronic decays."
1992
Data for both hemispheres. All rapidity regions.
"Table 3" of "Single intermediate vector boson production in e+ e- collisions at s**(1/2) = 183-GeV and 189-GeV."
2000
Cross sections for single-Z0 production in the hadronic channel.
"Table 13" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Thrust Minor distribution. Corrected to final state particles.
"Table 28" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Asymmetry of the Energy Energy Correlation AEEC.
"Table 2" of "Masses, lifetimes and production rates of Xi- and anti-Xi+ at LEP 1."
2007
Measured and extrapoplated production rates.
"Table 9" of "Investigation of the splitting of quark and gluon jets."
1998
Total 1-jet rate for Gluon jets as a function of the jet resolution parameter ycut in 'Y' topology events.
"Table 2" of "Energy-energy correlations in hadronic final states from Z0 decays"
1991
Values of LAMBDA-MSBAR(5) and ALPHA-S(91 GeV) deduced from the EEC measurements. The second systematic error is from the theory.
"Table 31" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Jet Cone Energy Fraction.
"Table 19" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
TAU+ TAU- cross sections from the 1991 data set corrected for full solid angle. Additional systematic uncertainty is 0.75 pct.
"Table 35" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distributions of the Small Jet Broadening (BMIN) at cm energies 133, 161 and 172 GeV.
"Table 6" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
E+ E- cross sections from the 1991 data set after t-channel subtraction with only the E- constraint by polar angle 44 to 136 degrees and accollinearity < 10 degrees. Additional systematic error, excluding luminosity, is 0.5 pct at the peak.
"Table 1" of "A Measurement of the tau leptonic branching fractions"
1995
Axis error includes +- 0.23/0.23 contribution (Data statistics).
"Table 3" of "Charged particle multiplicity in e+ e- --> q anti-q events at 161-GeV and 172-GeV and from the decay of the W boson."
1997
No description provided.
"Table 32" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Differential 4-jet rate for the JADE Algorithm. Corrected to final state particles. YCUT is the jet finding cutt-off parameter.
"Table 3" of "Study of the Leptonic Decays of the $Z^0$ Boson"
1990
Statistical errors only.
"Table 4" of "Production of strange particles in the hadronic decays of the Z0"
1992
No description provided.
"Table 12" of "Investigation of the splitting of quark and gluon jets."
1998
Splitting Function for Quark jets as a function of the jet resolution parameter ycut in 'Y' topology events.
"Table 26" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Asymmetry of the Energy Energy Correlation AEEC.
"Table 7" of "Production of strange particles in the hadronic decays of the Z0"
1992
No description provided.
"Table 1" of "Measurement of inclusive K*(892)0, Phi(1020) and K*2(1430)0 production in hadronic Z decays."
1996
SIG in (1/SIG) is the total hadronic cross section. The statistical and systematic errors are combined quadratically.
"Table 3" of "Production of strange particles in the hadronic decays of the Z0"
1992
No description provided.
"Table 10" of "Identified Charged Particles in Quark and Gluon Jets"
2003
Jet flavor tagging is used. 'Mercedes' events, three-fold symmetric events, the angle between three jets is 120 +- 15 deg.. CONST(NAME=XISTAR) is maximum of log(P(C=CHARGED)/P(C=JET)) distribution.
"Table 9" of "Determination of $alpha_{s}$ in second order {QCD} from hadronic $Z$ decays"
1992
Average value of the strong coupling constant ALPHA_S based on analysis of the event shape distributions.
"Table 11" of "Charged particle multiplicity distributions in restricted rapidity intervals in Z0 hadronic decays."
1992
Data for single hemisphere.
"Table 27" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distributions of the Heavy Jet Masses (MH**2/EVIS**2) at cm energies 133, 161 and 172 GeV.
"Table 1" of "Masses, lifetimes and production rates of Xi- and anti-Xi+ at LEP 1."
2007
Corrected LN(1/X) distribution for (XI- + XIBAR+) production.
"Table 6" of "Identified Charged Particles in Quark and Gluon Jets"
2003
Jet flavor tagging is used. (C=DUSCB), (C=DUSC), (C=UDS) mean quark-jet flavors. CONST(C=GLUON/JET) is the ratio gluon/jet for all charged particles. 'Mercedes' events, three-fold symmetric events, the angle between three jets is 120 +- 15 deg.
"Table 1" of "Charged particle multiplicity distributions in restricted rapidity intervals in Z0 hadronic decays."
1992
Data for both hemispheres.
"Table 1" of "Energy-energy correlations in hadronic final states from Z0 decays"
1991
Data requested from the authors.
"Table 8" of "Identified Charged Particles in Quark and Gluon Jets"
2003
Jet flavor tagging is used. (C=DUSCB), (C=DUSC), (C=UDS) mean quark-jet flavors. CONST(C=GLUON/JET) is the ratio gluon/jet for all charged particles. 'Mercedes' events, three-fold symmetric events, the angle between three jets is 120 +- 15 deg.
"Table 20" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Differential 2-Jet Rate Cambridge Alogrithm D2(Cam).
"Table 7" of "Charged particle multiplicity distributions in restricted rapidity intervals in Z0 hadronic decays."
1992
Data for single hemisphere.
"Table 4" of "Measurement of inclusive pi0 production in hadronic Z0 decays"
1995
Mean multiplicity for the enriched (b bbar) data set extrapolated with JETSET 7.3.
"Table 27" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Asymmetry of the Energy Energy Correlation AEEC.
"Table 3" of "Improved measurements of cross-sections and asymmetries at the Z0 resonance"
2000
Forward-backward asymmetry within the polar angular range 44 < THETA < 136 degrees and acollinearity < 10 degrees.. First result corresponds to the total cross section (i.e. S+T channel), while second one corresponds to S-channel only.
"Table 11" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
1-Thrust distribution. Corrected to final state particles.
"Table 6" of "Cross-sections and leptonic forward-backward asymmetries from the Z0 running of LEP."
2000
Cross section and forward-backward asymmetry in the E+ E- channel for the 1995 data. The polar angle is 44 to 136 degrees. Additional systematic error for cross section of 0.52 PCT (efficiencies and backgrounds) and 0.14 PCT (absolute luminosity). Additional systematic error for the asymmetry of 0.0020.
"Table 5" of "Measurements of the tau polarization in Z0 decays"
1995
The same as in previous table but the fit was made assuming lepton universality: Ptau = Pz. The first error is statistical, the second is due to the simulated data statistics and the third due to all other systematic uncertainties.
"Table 47" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Measured value of the logarithmic energy slope of the inverse coupling constant.
"Table 2" of "Strange baryon production in Z hadronic decays"
1995
No description provided.
"Table 12" of "Charged particle multiplicity distributions in restricted rapidity intervals in Z0 hadronic decays."
1992
Data for single hemisphere.
"Table 5" of "Measurement of inclusive production of light meson resonances in hadronic decays of the Z0"
1993
No description provided.
"Table 5" of "Strange baryon production in Z hadronic decays"
1995
No description provided.
"Table 30" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Jet Cone Energy Fraction.
"Table 1" of "W pair production cross-section and W branching fractions in e+ e- interactions at 189-GeV."
2000
Total W+ W- production cross section.
"Table 2" of "Measurement of inclusive rho0, f0(980), f2(1270), K*2(1430)0 and f'2(1525) production in Z0 decays."
1999
Integrated rates extrapolated to the full x range.
"Table 5" of "Improved measurements of cross-sections and asymmetries at the Z0 resonance"
2000
No description provided.
"Table 4" of "Investigation of the splitting of quark and gluon jets."
1998
Scaled energy distribution of charged hadrons produced in Gluon jets in 'Mercedes' topology 3-JET events.
"Table 10" of "Investigation of the splitting of quark and gluon jets."
1998
Differential 1-jet rate for Quark jets as a function of the jet resolution parameter ycut in 'Y' topology events.
"Table 1" of "Identified particles in quark and gluon jets."
1997
Y events.
"Table 6" of "Production of strange particles in the hadronic decays of the Z0"
1992
No description provided.
"Table 5" of "Measurement and Interpretation of Fermion-Pair Production at LEP Energies of 183 and 189 GeV"
2003
No description provided.
"Table 30" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distribution of the Light Jet Masses (ML**2/EVIS**2) at cm energy 183 GeV.
"Table 1" of "Experimental study of the triple gluon vertex"
1996
NC, CF, and TR are the color factors for SU(3) group.
"Table 1" of "Search for exclusive charmless B meson decays with the DELPHI detector at LEP"
1995
Two body decay modes. Upper limits at 90% CL. In computing of limits the fractions of B/(d,u)(0,-) and B/S0 mesons were assumed to be 0.39 and 0.12 respectively. Limits are given for the weighted average of the decay rates of the two neutral B mesons.
"Table 13" of "Energy dependence of event shapes and of alpha(s) at LEP-2."
1999
Distributions of (1-THRUST) at cm energies 133, 161 and 172 GeV.
"Table 2" of "Measurement of inclusive K*(892)0, Phi(1020) and K*2(1430)0 production in hadronic Z decays."
1996
SIG in (1/SIG) is the total hadronic cross section. The erros are statistical ones. The cross sections SIG(C=A), SIG(C=B), and SIG(C=C) obtained with A) both kaons identified, B) at least one kaon identified, and C) without requiring kaon identification.
"Table 14" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
MU+ MU- forward-backward asymmetries from the 1990 data set, derived by counting the number of muons in the forward-backward hemispheres, corrected to full solid angle but not for cuts on momenta and accollinearity. Additional systematic error 0.005.
"Table 34" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Asymmetry of the Energy-Energy Correlation AEEC. Corrected to final state particles.
"Table 27" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Differential 2-jet rate for the Durham Algorithm. Corrected to final state particles. YCUT is the jet finding cutt-off parameter.
"Table 53" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
XP distribution for XI+- production.. Data read from plot.
"Table 4" of "Measurement of inclusive K*(892)0, Phi(1020) and K*2(1430)0 production in hadronic Z decays."
1996
Average Multiplicities.
"Table 3" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
Integral of event shape distribution over the specified interval.
"Table 6" of "Improved measurements of cross-sections and asymmetries at the Z0 resonance"
2000
The cross section is measured in 4PI solid angle.
"Table 2" of "Charged particle multiplicity in e+ e- --> q anti-q events at 161-GeV and 172-GeV and from the decay of the W boson."
1997
No description provided.
"Table 16" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
Narrow Hemisphere Broadening, DBMIN. Axis definition is from charged corrected plus neutral particles.
"Table 1" of "Measurement of Delta++ (1232) production in hadronic Z decays"
1995
Differential DELTA(1232)++ cross section. Errors are combined statistics and systematics.
"Table 7" of "Improved measurements of cross-sections and asymmetries at the Z0 resonance"
2000
No description provided.
"Table 9" of "Charged particle multiplicity distributions in restricted rapidity intervals in Z0 hadronic decays."
1992
Data for single hemisphere.
"Table 20" of "Measurements of the line shape of the Z0 and determination of electroweak parameters from its hadronic and leptonic decays"
1994
TAU+ TAU- forward-backward asymmetries from the 1990 data set, corrected to full solid angle. Additional systematic error is 0.005 at the peak.
"Table 12" of "Production characteristics of K0 and light meson resonances in hadronic decays of the Z0"
1993
No description provided.
"Table 9" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Heavy Jet Mass.
"Table 5" of "Production of strange particles in the hadronic decays of the Z0"
1992
No description provided.
"Table 19" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
2-jet rate for the Durham Algorithm.
"Table 28" of "Tuning and test of fragmentation models based on identified particles and precision event shape data."
1996
Differential 2-jet rate for the JADE Algorithm. Corrected to final state particles. YCUT is the jet finding cutt-off parameter.
"Table 7" of "Measurement of inclusive production of light meson resonances in hadronic decays of the Z0"
1993
Numerical values of data supplied by J. Augustin.
"Table 4" of "Measurement of event shape and inclusive distributions at s**(1/2) = 130-GeV and 136-GeV."
1997
Integral of event shape distribution over the specified interval.
"Table 24" of "Consistent measurements of alpha(s) from precise oriented event shape distributions."
2000
Energy Energy Correlation EEC.
Photon events with missing energy at root s=183 to 189 GeV
2000
The production of single photons has been studied in the reaction e+e- -> gamma + invisible particles at centre-of-mass energies of 183 GeV and 189 GeV. A previously published analysis of events with multi-photon final states accompanied by missing energy has been updated with 189 GeV data. The data were collected with the DELPHI detector and correspond to integrated luminosities of about 51 pb^{-1} and 158 pb^{-1} at the two energies. The number of light neutrino families is measured to be 2.84 +/- 0.15(stat) +/- 0.14(syst). The absence of an excess of events beyond that expected from Standard Model processes is used to set limits on new physics as described by supersymmetric and compos…
W pair production cross-section and W branching fractions in $e^{+}e^{-}$ interactions at 189 GeV
2000
The cross-section for the process e+e- -> W+W- has been measured with the data sample collected by DELPHI at an average centre-of-mass energy of 189 GeV and corresponding to an integrated luminosity of 155 pb^{-1}. Based on the 2392 events selected as WW candidates, the cross-section for the doubly resonant process e+e- -> W+W- has been measured to be 15.83 +- 0.38 (stat) +- 0.20 (syst) pb. The branching fractions of the W decay were also measured and found to be in good agreement with the Standard Model expectation. From these a value of the CKM mixing matrix element |V_{cs}| = 1.001 +- 0.040 (stat) +- 0.020 (syst) was derived.
The Scale Dependence of the Hadron Multiplicity in Quark and Gluon Jets and a Precise Determination of $C_{A}/C_{F}$
1999
\frac{C_A}{C_F} = 2.246 \pm 0.062~(stat.) \pm 0.080~(syst.) \pm 0.095~(theo.) Data collected at the Z resonance using the DELPHI detector at LEP are used to determine the charged hadron multiplicity in gluon and quark jets as a function of a transverse momentum-like scale. The colour factor ratio, \cacf, is directly observed in the increase of multiplicities with that scale. The smaller than expected multiplicity ratio in gluon to quark jets is understood by differences in the hadronization of the leading quark or gluon. From the dependence of the charged hadron multiplicity on the opening angle in symmetric three-jet events the colour factor ratio is measured to be: C_A/C_F = 2.246 \pm 0.0…
Update of the search for supersymmetric particles in scenarios with Gravitino LSP and Sleptons NLSP
2001
An update of the search for sleptons, neutralinos and charginos in the context of scenarios where the lightest supersymmetric particle is the gravitino and the next-to-lightest supersymmetric particle is a slepton, is presented, together with the update of the search for heavy stable charged particles in light gravitino scenarios and Minimal Supersymmetric Standard Models. Data collected in 1999 with the DELPHI detector at centre-of-mass energies around 192, 196, 200 and 202 GeV were analysed. No evidence for the production of these supersymmetric particles was found. Hence, new mass limits were derived at 95% confidence level.
Search for the Standard Model Higgs boson at LEP in the year 2000
2001
Searches for the Standard Model Higgs boson have been performed in the data collected by the DELPHI experiment at LEP in the year 2000 at centre-of-mass energies between 200 and 209 GeV corresponding to a total integrated luminosity of 224 pb^{-1}. No evidence for a Higgs signal is observed in the kinematically accessible mass range, and a 95% CL lower mass limit of 114.3 GeV/c^2 is set, to be compared with an expected median limit of 113.5 GeV/c^2 for these data.
Measurement of the charged particle multiplicity of weakly decaying B hadrons
1998
From the Z decays recorded in 1994 and 1995 by the DELPHI detector at LEP, the charged particle multiplicity of weakly decaying B hadrons was measured to be: 4.97 +/- 0.03 +/- 0.06 excluding the K-o and Lambda decay products. (C) 1998 Published by Elsevier Science B.V. All rights reserved.
Measurement of the ZZ cross-section in e(+)e(-) interactions at 183-189 GeV
2001
Measurements of on-shell ZZ production are described, using data collected by DELPHI in 1997 and 1998, at centre-of-mass energies sqrt(s) = 182.6 GeV and 188.6 GeV respectively. Results obtained in each of the final states q qbar q qbar, mu+mu- q qbar, e+e- q qbar, nu nubar q qbar, l+l-l+l-, and nu nubar l+l- are presented. The measured cross-sections for on-shell ZZ production via the tree-level doubly-resonant graphs (NC02) are: sigma_{NC02}(182.6 GeV) = 0.38 +- 0.18 (stat) +- 0.04 (syst) pb, sigma_{NC02}(188.6 GeV) = 0.60 +- 0.13 (stat) +- 0.07 (syst) pb. They are consistent with the Standard Model expectations of 0.25 pb and 0.65 pb at each energy.
Multiplicity fluctuations in one- And two-dimensional angular intervals compared with analytic QCD calculations
1999
Multiplicity fluctuations in rings around the jet axis and in off-axis cones have been measured by the DELPHI collaboration in $e^+e^-$ annihilations into hadrons at LEP energies. The measurements are compared with analytical perturbative QCD calculations for the corresponding multiparton system, using the concept of Local Parton Hadron Duality. Some qualitative features are confirmed by the data but substantial quantitative deviations are observed.
Measurement of the semileptonic b branching fractions and average b mixing parameter in Z decays
2001
The semileptonic branching fractions for primary and cascade b decays BR(b -> lepton-), BR(b -> c -> lepton+) and BR(b -> cbar -> lepton-) were measured in hadronic Z decays collected by the DELPHI experiment at LEP. The sample was enriched in b decays using the lifetime information and various techniques were used to separate leptons from direct or cascade b decays. By fitting the momentum spectra of di-leptons in opposite jets, the average b mixing parameter chi-bar was also extracted. The following results have been obtained: BR(b -> lepton-) = (10.70 +/- 0.08 (stat) +/- 0.21 (syst)_{+0.44}^{-0.30}(model))% BR(b -> c -> lepton+) = (7.98 +/- 0.22 (stat) +/- 0.21 (s…
Measurement and Interpretation of Fermion-Pair Production at LEP Energies of 183 and 189 GeV
2000
An analysis of the data collected in 1997 and 1998 with the DELPHI detector at e+e- collision energies close to 183 and 189 GeV was performed in order to extract the hadronic and leptonic fermion-pair cross-sections, as well as the leptonic forward-backward asymmetries and angular distributions. The data are used to put limit on contact interactions between fermions, the exchange of R-parity violating SUSY sneutrinos, Z' bosons and the existence of gravity in extra dimensions.