{"paper":{"title":"Measurement of the $CP$-violating phase $\\phi_\\mathrm{s}$ in the B$^0_\\mathrm{s}$ $\\to$ J$/\\psi\\, \\phi$(1020) $\\to$ $\\mu^+\\mu^-$K$^+$K$^-$ channel in proton-proton collisions at $\\sqrt{s} =$ 13 TeV","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"CMS Collaboration","submitted_at":"2020-07-05T19:47:23Z","abstract_excerpt":"The $CP$-violating weak phase $\\phi_\\mathrm{s}$ and the decay width difference $\\Delta\\Gamma_\\mathrm{s}$ between the light and heavy B$^0_\\mathrm{s}$ mass eigenstates are measured with the CMS detector at the LHC in a sample of 48 500 reconstructed B$^0_\\mathrm{s}$ $\\to$ J$/\\psi\\, \\phi$(1020) $\\to$ $\\mu^+\\mu^-$K$^+$K$^-$ events. The measurement is based on a data sample corresponding to an integrated luminosity of 96.4 fb$^{-1}$, collected in proton-proton collisions at $\\sqrt{s} =$ 13 TeV in 2017-2018. To extract the values of $\\phi_\\mathrm{s}$ and $\\Delta\\Gamma_\\mathrm{s}$, a time-dependent "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2007.02434","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2007.02434/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}