1994/05/20 by SLD Collaboration
Physics and Astronomy · #Dark Matter and Cosmic Phenomena #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Particle Detector Development and Performance #Particle physics theoretical and experimental studies
paper · pdf · doi:10.48550/arxiv.hep-ex/9405011
openalex publication_date 1994/05/20 · openalex created_date 2022/08/31 · openalex updated_date 2026/07/28
In the 1993 SLC/SLD run, the SLD recorded 50,000 \z0 events produced by the collision of longitudinally polarized electrons on unpolarized positrons at a center-of-mass energy of 91.26 GeV. The luminosity-weighted average polarization of the SLC electron beam was (63.0±1.1)%. We measure the left-right cross-section asymmetry in \z0 boson production, \alr, to be 0.1628±0.0071(stat.)±0.0028(syst.) which determines the effective weak mixing angle to be \swein=0.2292±0.0009(\rm stat.)±0.0004(\rm syst.).