{"paper":{"title":"Precise Measurement of the Left-Right Cross Section Asymmetry in $Z$ Boson Production by $\\ee$ Collisions","license":"","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-ex","authors_text":"The SLD Collaboration","submitted_at":"1994-04-27T23:09:00Z","abstract_excerpt":"We present a precise measurement of the left-right cross section asymmetry ($A_{LR}$) for $Z$ boson production by $\\ee$ collisions. The measurement was performed at a center-of-mass energy of 91.26 GeV with the SLD detector at the SLAC Linear Collider (SLC). The luminosity-weighted average polarization of the SLC electron beam was (63.0$\\pm$1.1)%. Using a sample of 49,392 $\\z0$ decays, we measure $A_{LR}$ to be 0.1628$\\pm$0.0071(stat.)$\\pm$0.0028(syst.) which determines the effective weak mixing angle to be $\\swein=0.2292\\pm0.0009({\\rm stat.})\\pm0.0004({\\rm syst.})$.}"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ex/9404001","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}