{ "id": "0802.1547", "version": "v1", "published": "2008-02-11T23:59:42.000Z", "updated": "2008-02-11T23:59:42.000Z", "title": "Study of B-> phi phi K Decays", "authors": [ "The Belle Collaboration", "Y. T. Shen", "K. -F. Chen", "P. Chang" ], "comment": "6 pages, 3 figures", "categories": [ "hep-ex" ], "abstract": "We report an observation of the decay B^\\pm -> \\phi \\phi K^\\pm and evidence for B^0 -> \\phi \\phi K^0. These results are based on a 414 fb^{-1} data sample collected with the Belle detector at the KEKB asymmetric-energy e^+e^- collider operating at the \\Upsilon(4S) resonance. The branching fractions for these decay modes are measured to be Br(B^{\\pm} -> \\phi \\phi K^\\pm) = (3.2^{+0.6}_{-0.5} +- 0.3) * 10^{-6} and Br(B^{0} \\to \\phi \\phi K^{0}) = (2.3^{+1.0}_{-0.7} +- 0.2) * 10^{-6} for \\phi \\phi invariant mass below 2.85 GeV/c^2. The corresponding partial rate asymmetry for the charged B mode is measured to be A_{CP}(B^\\pm -> \\phi \\phi K^\\pm) = 0.01^{+0.19}_{-0.16} +- 0.02. We also study the decays B^\\pm -> J/\\psi K^\\pm and B^\\pm -> \\eta_c K^\\pm, where the J/\\psi and \\eta_c decay to final states with four charged kaons. We find A_{CP}(B^\\pm -> \\phi \\phi K^\\pm) with the \\phi\\phi candidates within the \\eta_c mass region is 0.15^{+0.16}_{-0.17} +- 0.02, consistent with no asymmetry.", "revisions": [ { "version": "v1", "updated": "2008-02-11T23:59:42.000Z" } ], "analyses": { "subjects": [ "13.25.Ft", "13.25.Hw", "14.40.Nd" ], "keywords": [ "phi phi", "corresponding partial rate asymmetry", "data sample", "mass region", "final states" ], "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable", "inspire": 779207, "adsabs": "2008arXiv0802.1547T" } } }