0000000000359824

AUTHOR

V. Anykeyev

showing 4 related works from this author

PRODUCTION CHARACTERISTICS OF K-0 AND LIGHT MESON RESONANCES IN HADRONIC DECAYS OF THE Z(0)

1995

An analysis of inclusive production of K0and the meson resonances K*±(892), ρ0(770), f0(975) and f2(1270) in hadronic decays of the Z0is presented, based on about 973,000 multihadronic events collected by the DELPHI detector at LEP during 1991 and 1992. Overall multiplicities have been determined as 1.962±0.060 K0mesons, 0.712±0.067 K*±(892) and 1.21±0.15ρ0(770) per hadronic Z0decay. The average multiplicities of f0(975) for scaled momentum, xp, in the range 0.05≤xp≤0.6 and of f2(1270) for 0.05≤xp≤1.0 are 0.098±0.016 and 0.170±0.043 respectively. The f0(975) and ρ0(770)xp-spectra have similar shapes. The f2(1270)/ρ0(770) ratio increases with xp. The average multiplicities…

Particle physicsMesonPhysics and Astronomy (miscellaneous)LUND MONTE-CARLOElectron–positron annihilationHadron01 natural sciencesJET FRAGMENTATION250 GEV/CPartícules (Física nuclear)Nuclear physics0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]multiplicityENERGY REGION010306 general physicsParton showerEngineering (miscellaneous)Detectors de radiacióDELPHI. inclusive production; K0 meson; multiplicity; MontecarloPhysicsRange (particle radiation)Momentum (technical analysis)010308 nuclear & particles physicsMultiplicity (mathematics)E+E-ANNIHILATIONINCLUSIVE PRODUCTIONZ0 DECAYSMontecarloParticle accelerationLUND MONTE-CARLO; E+E-ANNIHILATION; INCLUSIVE PRODUCTION; JET FRAGMENTATION; Z0 DECAYS; P INTERACTIONS; VECTOR-MESONS; ENERGY REGION; 250 GEV/C; 360 GEV/C360 GEV/CP INTERACTIONSK0 mesonDELPHI. inclusive productionVECTOR-MESONSParticle Physics - Experiment
researchProduct

Strange baryon production in Z hadronic decays

1995

A study of the production of strange octet and decuplet baryons in hadronic decays of the Z recorded by the DELPHI detector at LEP is presented. This includes the first measurement of the ∑± average multiplicity. The total and differential cross sections, the event topology and the baryon-antibaryon correlations are compared with current hadronization models. © 1995 Springer-Verlag.

Particle physicsPhysics and Astronomy (miscellaneous)OctetLUND MONTE-CARLO; JETS; Z(0)LUND MONTE-CARLOElectron–positron annihilationHadronNuclear TheoryElementary particle01 natural sciencesPartícules (Física nuclear)Nuclear physics0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Quantum field theoryMultiplicity (chemistry)010306 general physicsNuclear ExperimentEngineering (miscellaneous)hadronic decayDELPHIPhysicsbaryon-anti-baryon correlation010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyZ(0)DELPHI; hadronic decay; baryon-anti-baryon correlationLARGE ELECTRON POSITRON COLLIDERHadronizationBaryonPARTICLE PHYSICS; LARGE ELECTRON POSITRON COLLIDER; DELPHIJETSPARTICLE PHYSICSFísica nuclearHigh Energy Physics::ExperimentParticle Physics - Experiment
researchProduct

Measurement of $\Delta^{++}$(1232) production in hadronic Z decays

1995

A measurement of the \Delta^{++}(1232) inclusive production in hadronic decays of the Z at LEP is presented, based on 1.3 million hadronic events collected~ by the DELPHI~ detector in the 1994 LEP running~ period. The DELPHI ring imaging Cherenkov counters are used for identifying hadrons. The average \Delta^{++}(1232) multiplicity per hadronic event is 0.079 \pm 0.015 which is more than a factor of two below the JETSET, HERWIG and UCLA model predictions. It agrees with a recently proposed universal mass dependence of particle production rates in e^{+}e^- annihilations.

Hadronic decayNuclear and High Energy PhysicsParticle physicsE+E ANNIHILATIONSe+e- annihilationCherenkov detectorElectron–positron annihilationDELPHI; hadronic decay; Cherenkov detector; e+e- annihilationHadron01 natural sciencesPartícules (Física nuclear)law.inventionNuclear physicslaw0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Multiplicity (chemistry)010306 general physicsCherenkov radiationhadronic decayDELPHIPhysics010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyLARGE ELECTRON POSITRON COLLIDERPARTICLE PHYSICS; LARGE ELECTRON POSITRON COLLIDER; DELPHIPARTICLE PHYSICSFísica nuclearHigh Energy Physics::ExperimentParticle Physics - ExperimentCherenkov detector
researchProduct

Lifetime of Charged and Neutral B-hadrons Using Event Topology

1995

The lifetimes of charged and neutral B hadrons have been measured using data collected by the DELPHI experiment at LEP between 1991 and 1993. B hadrons are tagged as jets with a secondary vertex and the charge of the B candidate is taken to be the sum of the charges of the particles in the secondary vertex. Approximately 1,434,000 multihadronic \PZz decays yielded 1817 B hadron candidates. The B purity was estimated to be around 99.1\pm0.3\%, and 83\% (70\%) of the events measured as neutral (charged) came from neutral (charged) B's. The mean lifetimes of charged and neutral B hadrons were found to be \TAUBC\pm\ERRBC\;(stat.)\pm\SYSBC\;(syst.)~ps and \TAUBN\pm\ERRBN\;(stat.)\pm\SYSBN\;(syst…

Particle physicsPhysics and Astronomy (miscellaneous)MesonLUND MONTE-CARLOElectron–positron annihilationHadronB hadron01 natural sciencesPartícules (Física nuclear)JET FRAGMENTATIONDELPHI; B hadron; lifetime; jet taggingNuclear physics0103 physical sciences[PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]Nuclear Experiment010306 general physicsEngineering (miscellaneous)DELPHIlifetimeLUND MONTE-CARLO; JET FRAGMENTATION; E+E-PHYSICSPhysicsE+E-PHYSICS010308 nuclear & particles physicsLARGE ELECTRON POSITRON COLLIDERPARTICLE PHYSICS; LARGE ELECTRON POSITRON COLLIDER; DELPHIPARTICLE PHYSICSFísica nuclearHigh Energy Physics::ExperimentAstrophysics::Earth and Planetary Astrophysicsjet taggingParticle Physics - Experiment
researchProduct