{"paper":{"title":"$B^*_{s,d} \\to \\mu^+ \\mu^-$ and its impact on $B_{s,d} \\to \\mu^+ \\mu^-$","license":"http://creativecommons.org/licenses/by-sa/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Cheng-Ping Shen, Guang-Zhi Xu, Yue Qiu, Yu-Jie Zhang","submitted_at":"2015-12-21T23:08:42Z","abstract_excerpt":"The decay of $B^*_{s,d} \\to \\mu^+ \\mu^-$~ and its impact on $B_{s,d} \\to \\mu^+ \\mu^-$ is studied here. The $ \\mu^+ \\mu^-$ decay widths of vector mesons $B^*_{s,d}$ are about a factor of 700 larger than the corresponding scalar mesons $B_{s,d}$. The obtained ratio of the branching fractions $Br({B_{s,d}^*\\to \\mu^+\\mu^-})/{Br({B_{s,d}\\to\\mu^+\\mu^-})}$ is about $\\frac{0.3 \\times {\\rm eV}}{{\\Gamma(B^*_{s,d} \\to B_{s,d} \\gamma)}}$. At the same time, the hadronic contribution $B_{s,d} \\to B^*_{s,d} \\gamma \\to \\mu^+ \\mu^-$ is estimated too. The relative increase of the amplitude of $B_{s,d}\\to \\mu^+\\"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1601.03386","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":""},"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"}