{"paper":{"title":"Mixing and lifetimes of $b$-hadrons","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Alexander Lenz","submitted_at":"2008-02-07T15:12:35Z","abstract_excerpt":"We review the status of mixing and lifetimes of $b$-hadrons. We will show that $\\Delta \\Gamma / \\Delta M$, $a_{sl}$ and $\\phi$ are better suited to search for new physics effects than $\\Delta M$ alone, because of our poor knowledge of the decay constants. The theoretical precision in the determination of $\\Gamma_{12} / M_{12}$ - which contains all information on $\\Delta \\Gamma / \\Delta M$, $a_{sl}$ and $\\phi$ - can be tested directly by investigating the lifetimes of $b$-hadrons, because both quantities rely on the same theoretical footing. In particular we will also present a numerical estima"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"0802.0977","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/0802.0977/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"}