{"paper":{"title":"B_s \\to \\rho(\\omega) K^* with Perturbative QCD approach","license":"","headline":"","cross_cats":["hep-ex"],"primary_cat":"hep-ph","authors_text":"Cai-Dian Lu, Jin Zhu, Yue-Long Shen","submitted_at":"2005-06-30T08:50:36Z","abstract_excerpt":"$B_s \\to \\rho(\\omega) K^{\\ast}$ are useful to determine the $B_s$ distribution amplitude, as well as constrain the CKM phase angle $\\alpha$. We study these decays within the Perturbative QCD (PQCD) picture. In this approach, we calculate factorizable, non-factorizable, as well as annihilation diagrams. We find the branching ratio for $B_s \\to \\rho^+ K^{*-}$ is big to order $10^{-5}$, we also find there's large direct CP violation in $B_s(\\bar B_s) \\to \\rho^0(\\omega) \\bar K^{*0}(K^{*0})$. Our predictions are consistent with those from other methods and current experiments."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"hep-ph/0506316","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"}