{"paper":{"title":"Precision Measurement of the $B_s-\\kern0.18em\\overline{\\kern -0.18em B}{}^0_s$ Oscillation Frequency $\\Delta m_s$ with $B_s\\to D_s^-\\pi^+$ Decays at LHCb","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"Kevin Heinicke","submitted_at":"2021-05-17T19:54:40Z","abstract_excerpt":"Decays of $B^0_s \\to D_s^- \\pi^+$ allow to determine the oscillation frequency $\\Delta m_s$ between the $B^0_s$ particle and $\\kern0.18em\\overline{\\kern -0.18em B}{}^0_s$ antiparticle states with high precision. It is a crucial input to constrain the CKM matrix and a manifestation of the quantum nature of physics. A new measurement of this frequency is presented, using a dataset corresponding to $6\\,\\mathrm{fb}^{-1}$ of $pp$ collisions, recorded by LHCb at a centre-of-mass energy of $13\\,\\mathrm{TeV}$. The oscillation frequency is determined to be $\\Delta m_s = 17.7683\\pm0.0051(\\mathrm{stat.})"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2105.08134","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2105.08134/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"}