{"paper":{"title":"Technicolor corrections on $B_{s,d} \\to \\gamma\\gamma$ decays in QCD factorization","license":"","headline":"","cross_cats":[],"primary_cat":"hep-ph","authors_text":"Cai-Dian L\\\"u, Wujun Huo, Zhenjun Xiao","submitted_at":"2003-01-24T20:10:15Z","abstract_excerpt":"Within the framework of the Top-color-assisted Technicolor (TC2) model, we calculate the new physics contributions to the branching ratios $\\calb(B_{s,d} \\to \\gamma \\gamma)$ and CP violating asymmetries $\\rcpm(B_{s,d} \\to \\gamma \\gamma)$ in the QCD factorization based on the heavy-quark limit $m_b \\gg \\Lambda_{QCD}$. Using the considered parameter space, we find that (a) for both $B_s\\to \\gamma \\gamma$ and $B_d \\to \\gamma \\gamma$ decays, the new physics contribution can provide a factor of two to six enhancement to their branching ratios, (b) for the $B_s \\to \\gamma \\gamma$ decay, its direct C"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0301221","kind":"arxiv","version":3},"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"}