{"paper":{"title":"$\\Delta M_s/\\Delta M_d$, $\\sin 2\\beta$ and the angle $\\gamma$ in the Presence of New $\\Delta F=2$ Operators","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Andrzej J. Buras, Janusz Rosiek, Lucja Slawianowska, Piotr H. Chankowski","submitted_at":"2001-07-05T13:12:20Z","abstract_excerpt":"We present formulae for the mass differences $\\Delta M_d$ and $\\Delta M_s$ in the \\BBds systems and for the CP violation parameter $\\epsilon$ which are valid in minimal flavour violation models giving rise to new four-fermion $\\Delta F=2$ operators. Short distance contributions to $\\Delta M_s$, $\\Delta M_d$ and $\\epsilon$ are parameterized by three {\\it real} functions $F^s_{tt}$, $F^d_{tt}$ and $F^\\epsilon_{tt}$, respectively ($F^s_{tt} = F^d_{tt} = F^\\epsilon_{tt}$ holds only if the Standard Model $(V-A) \\otimes (V-A)$ operators dominate). We present simple strategies involving the ratio $\\D"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0107048","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/hep-ph/0107048/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"}