{"paper":{"title":"Branching ratio and CP violation of $B_{s}\\to \\pi K$ decays in the perturbative QCD approach","license":"","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Cai-Dian L\\\"u, Xian-Qiao Yu, Ying Li","submitted_at":"2005-01-17T12:38:47Z","abstract_excerpt":"In the framework of perturbative QCD approach, we calculate the branching ratio and CP asymmetry for $B_{s}^0(\\bar{B}_{s}) \\to \\pi^{\\pm} K^\\mp$ and $B_{s}(\\bar{B}_{s})\\to \\pi^{0}\\bar{K}^{0}(K^{0})$ decays. Besides the usual factorizable diagrams, both non-factorizable and annihilation type contributions are taken into account. We find that (a) the branching ratio of $B_{s}^0(\\bar{B}_{s}) \\to \\pi^{\\pm} K^\\mp$ is about $(6-10) \\times 10^{-6}$; $Br(B_{s}(\\bar{B}_{s})\\to \\pi^{0}\\bar{K}^{0}(K^{0}))$ about $ (1-3) \\times 10^{-7}$; and (b) there are large CP asymmetries in the two processes, which ca"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0501152","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"}