0000000001084917
AUTHOR
A. Budziak
Improved measurements of cross sections and asymmetries at the Z0 resonance
During the 1992 running period of the LEP e+e- collider, the DELPHI experiment accumulated approximately 24 pb-1 of data at the Z0 peak. The decays into hadrons and charged leptons have been analysed to give values for the cross sections and leptonic forward-backward asymmetries which are significantly improved with respect to those previously published by the DELPHI collaboration. Incorporating these new data, more precise values for the Z0 resonance parameters are obtained from model-independent fits. The results are interpreted within the framework of the Standard Model, yielding for the top quark mass m(t) = 157(-48)+36(expt.)-20(+19)(Higgs) GeV, and for the effective mixing angle sin2 …
PRODUCTION-RATE AND DECAY LIFETIME MEASUREMENTS OF B(S)0 MESONS AT LEP USING D(S) AND PHI MESONS
The study of the properties of inclusive production of Ds mesons and of events in which a φ{symbol} and a muon are present in the same jet provides two independent measurements of the probability, fs w, for a heavy quark to hadronize into a strange B or D meson. The data sample analysed corresponds to 243,000 hadronic Z0 decays. The combined value of these measurements is fs w=0.19±0.06±0.08. From the flight distance distributions of Ds and of (φ{symbol}-lepton) secondary vertices, with the lepton emitted at high transverse momentum relative to the jet axis, two values are obtained for the Bs 0 meson lifetime. Combining these measurements with a previous result based on the study of Ds-μ ev…
Limits on the production of scalar leptoquarks from $Z^0$ decays at LEP
A search has been made for pairs and for single production of scalar leptoquarks of the first and second generations using a data sample of 392000 Z0 decays from the DELPHI detector at LEP 1. No signal was found and limits on the leptoquark mass, production cross section and branching ratio were set. A mass limit at 95% confidence level of 45.5 GeV/c2 was obtained for leptoquark pair production. The search for the production of a single leptoquark probed the mass region above this limit and its results exclude first and second generation leptoquarks D0 with masses below 65 GeV/c2 and 73 GeV/c2 respectively, at 95% confidence level, assuming that the D0lq Yukawa coupling alpha(lambda) is equ…
CCDC 844071: Experimental Crystal Structure Determination
Related Article: R.Podgajny, S.Chorazy, W.Nitek, A.Budziak, M.Rams, C.J.Gomez-Garcia, M.Oszajca, W.Lasocha, B.Sieklucka|2011|Cryst.Growth Des.|11|3866|doi:10.1021/cg2004062
CCDC 844070: Experimental Crystal Structure Determination
Related Article: R.Podgajny, S.Chorazy, W.Nitek, A.Budziak, M.Rams, C.J.Gomez-Garcia, M.Oszajca, W.Lasocha, B.Sieklucka|2011|Cryst.Growth Des.|11|3866|doi:10.1021/cg2004062
CCDC 844072: Experimental Crystal Structure Determination
Related Article: R.Podgajny, S.Chorazy, W.Nitek, A.Budziak, M.Rams, C.J.Gomez-Garcia, M.Oszajca, W.Lasocha, B.Sieklucka|2011|Cryst.Growth Des.|11|3866|doi:10.1021/cg2004062