ar X iv : h ep - e x / 99 03 04 0 v 1 17 M ar 1 99 9 Measurements of A LR , A lepton and A b from SLD Jorge
نویسنده
چکیده
We present the measurements of the leptonic asymmetries in Z decays measured by the SLD experiment at SLAC. A data sample of approximately 550,000 Z bosons are used for the preliminary measurement of ALR(Ae) and the leptonic final state measurements of Ae, Aμ and Aτ , representing the entire set of 1992-1998 SLD runs. When combining all results, a preliminary value for the effective weak mixing angle is obtained: sinθ W = 0.23109 ± 0.00029. We also present the direct measurements of Ab from left-right forward-backward asymmetries, using partial data samples from 1993-1998 SLD runs. The preliminary value combines jet charge, cascade kaon and semileptonic decay analyses to obtain Ab = 0.866 ± 0.036.
منابع مشابه
ar X iv : h ep - e x / 99 04 01 6 v 1 1 5 A pr 1 99 9 Precision Electroweak
Preliminary SLD electroweak results based on essentially the complete 550K Z dataset are presented and interpreted, and some historical background is provided.
متن کاملar X iv : h ep - e x / 96 04 01 1 v 1 1 M ay 1 99 6 FACTORIZATION AND COLOR - SUPPRESSION IN HADRONIC B → D ( ∗ ) nπ DECAYS Jorge
متن کامل
ar X iv : h ep - t h / 99 03 04 4 v 1 4 M ar 1 99 9 When radiative corrections are finite but undetermined
In quantum field theory radiative corrections can be finite but undeter-mined.
متن کاملhe p - ex / 9 90 30 40 17 M ar 1 99 9 Measurements of A LR , A lepton and A b from SLD Jorge
We present the measurements of the leptonic asymmetries in Z decays measured by the SLD experiment at SLAC. A data sample of approximately 550,000 Z bosons are used for the preliminary measurement of ALR(Ae) and the leptonic final state measurements of Ae, Aμ and Aτ , representing the entire set of 1992-1998 SLD runs. When combining all results, a preliminary value for the effective weak mixing...
متن کامل