{"paper":{"title":"Time-Dependent Precision Measurement of $B_s^0\\rightarrow \\phi \\mu^+\\mu^-$ Decay at FCC-$ee$","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Ben Kilminster, Jason Aebischer, Tsz Hong Kwok, Valeriia Lukashenko, Zachary Polonsky","submitted_at":"2025-06-09T18:00:02Z","abstract_excerpt":"We study the feasibility of measuring time-dependent $C\\!P$ violation in the rare flavor-changing neutral current (FCNC) decay $B_s^0 \\rightarrow \\phi(\\rightarrow K^+K^-) \\mu^+ \\mu^-$ at the FCC-$ee$. In the Standard Model (SM), $C\\!P$ violation in this mode arises only at higher orders and is highly suppressed. Extensions of the SM, collectively referred to as New Physics (NP), can introduce additional $C\\!P$-violating phases that enhance such effects. The decay $B_s^0 \\rightarrow \\phi \\mu^+ \\mu^-$, mediated by the $b \\rightarrow s \\ell^+ \\ell^-$ transition, is therefore a promising probe of "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2506.08089","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/2506.08089/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"}