2000/04/25 by SLD Collaboration, Kenji Abe, Koya Abe +98 · 1 citation
Engineering · Physics and Astronomy · #Asymmetry #Boson #Collider #Computer science #Cross section (physics) #Database #Electron–positron annihilation #Hadron #Luminosity #Measure (data warehouse) #Nuclear physics #Particle Accelerators and Free-Electron Lasers #Particle Detector Development and Performance #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #hep-ex
paper · pdf · doi:10.1103/physrevlett.84.5945
published as Phys.Rev.Lett.84:5945-5949,2000
arxiv created 2000/04/25 · openalex publication_date 2000/06/26 · arxiv updated 2012/08/27 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We present a measurement of the left-right cross-section asymmetry ( ALR) for Z boson production by e+e^\ensuremath- collisions. The measurement includes the final data taken with the SLD detector at the SLAC Linear Collider during the period 1996--1998. Using a sample of 383 487 Z decays collected during the 1996--1998 runs we measure the pole value of the asymmetry, ALR0, to be 0.15056\ifmmode±\else\textpm\fi0.00239 which is equivalent to an effective weak mixing angle of sin2\ensuremathθWeff\phantom\rule0ex0ex=\phantom\rule0ex0ex0.23107\ifmmode±\else\textpm\fi0.00030. Our result for the complete 1992--1998 data set comprising approximately 537 000 Z decays is sin2\ensuremathθWeff\phantom\rule0ex0ex=\phantom\rule0ex0ex0.23097\ifmmode±\else\textpm\fi0.00027.