1996/11/18 by SLD Collaboration, I. Abt, K. Abe +98 · 3 citations
Engineering · Physics and Astronomy · #Dark Matter and Cosmic Phenomena #Particle Detector Development and Performance #Photocathodes and Microchannel Plates #hep-ex
paper · pdf · doi:10.1103/physrevlett.78.2075
published as Phys.Rev.Lett.78:2075-2079,1997 · 16 pages, RevTeX document, no figures. Also available in gzip-compressed postscript form (58 Kb) at ftp://ftp.slac.stanford.edu/users/morris/alr95_preprint.ps.gz and /afs/slac.stanford.edu/public/users/morris/alr95_preprint.ps.gz. Uncompressed postscript file (214 Kb) available to DECNET users as SLC::USER_DISK_SLC1:[MORRIS]alr95_preprint.ps
arxiv created 1996/11/18 · openalex publication_date 1997/03/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We present a new measurement of the left-right cross section asymmetry (ALR) for Z boson production by e+e^\ensuremath- collisions. The measurement was performed at a center-of-mass energy of 91.28 GeV with the SLD detector at the SLAC Linear Collider (SLC). The luminosity-weighted average polarization of the SLC electron beam was (77.23\ifmmode±\else\textpm\fi0.52)%. Using a sample of 93 644 Z decays, we measure the pole value of the asymmetry, ALR0, to be 0.1512\ifmmode±\else\textpm\fi0.0042(stat)\ifmmode±\else\textpm\fi0.0011(syst), which is equivalent to an effective weak mixing angle of sin2\ensuremathθWeff\phantom\rule0ex0ex=\phantom\rule0ex0ex0.23100\ifmmode±\else\textpm\fi0.00054(stat)\ifmmode±\else\textpm\fi0.00014(syst).