{ "id": "hep-ph/0501152", "version": "v3", "published": "2005-01-17T12:38:47.000Z", "updated": "2005-12-13T09:24:51.000Z", "title": "Branching ratio and CP violation of $B_{s}\\to πK$ decays in the perturbative QCD approach", "authors": [ "Xian-Qiao Yu", "Ying Li", "Cai-Dian Lü" ], "comment": "19 pages, 5 figures", "journal": "Phys.Rev.D71:074026,2005; Erratum-ibid.D72:119903,2005", "doi": "10.1103/PhysRevD.71.074026", "categories": [ "hep-ph", "hep-ex" ], "abstract": "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 can be tested in the near future LHC-b experiments at CERN and BTeV experiments at Fermilab.", "revisions": [ { "version": "v3", "updated": "2005-12-13T09:24:51.000Z" } ], "analyses": { "subjects": [ "12.38.Bx", "13.25.Hw" ], "keywords": [ "perturbative qcd approach", "branching ratio", "cp violation", "cp asymmetry", "annihilation type contributions" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. D" }, "note": { "typesetting": "TeX", "pages": 19, "language": "en", "license": "arXiv", "status": "editable", "inspire": 675030 } } }