We have measured the forward-backward asymmetry in e+e- --> bbBAR and e+e- --> ccBAR processes using hadronic events containing muons or electrons. The data sample corresponds to 410 000 hadronic decays of the Z0. From a fit to the single lepton and dilepton p and p(T) spectra, we determine A(bbBAR) = 0.086+/-0.015+/-0.007 and A(ccBAR) = 0.083+/-0.038+/-0.027 at the effective center-of-mass energy square root s = 91.24 GeV. These measurements yield a value of the electroweak mixing angle sin2theta(W)BAR = 0.2336+/-0.0029.

Measurement of the E+e- -] B(b)over-bar and E+e- -] C(c)over-bar Forward Backward Asymmetries At the Z0 Resonance / O. ADRIANI, M. AGUILARBENITEZ, S. AHLEN, H. AKBARI, J. ALCARAZ, A. ALOISIO, G. ALVERSON, M. G. ALVIGGI, G. AMBROSI, Q. AN, H. ANDERHUB, A. L. ANDERSON, V. P. ANDREEV, T. ANGELOV, L. ANTONOV, D. ANTREASYAN, P. ARCE, A. AREFIEV, A. ATAMANCHUK, T. AZEMOON, et al.. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - 292:(1992), pp. 454-462. [10.1016/0370-2693(92)91203-L]

Measurement of the E+e- -] B(b)over-bar and E+e- -] C(c)over-bar Forward Backward Asymmetries At the Z0 Resonance

ADRIANI, OSCAR;D'ALESSANDRO, RAFFAELLO;M. LENTI;
1992

Abstract

We have measured the forward-backward asymmetry in e+e- --> bbBAR and e+e- --> ccBAR processes using hadronic events containing muons or electrons. The data sample corresponds to 410 000 hadronic decays of the Z0. From a fit to the single lepton and dilepton p and p(T) spectra, we determine A(bbBAR) = 0.086+/-0.015+/-0.007 and A(ccBAR) = 0.083+/-0.038+/-0.027 at the effective center-of-mass energy square root s = 91.24 GeV. These measurements yield a value of the electroweak mixing angle sin2theta(W)BAR = 0.2336+/-0.0029.
1992
292
454
462
O. ADRIANI;M. AGUILARBENITEZ;S. AHLEN;H. AKBARI;J. ALCARAZ;A. ALOISIO;G. ALVERSON;M. G. ALVIGGI;G. AMBROSI;Q. AN;H. ANDERHUB;A. L. ANDERSO...espandi
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Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/772739
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