{ "id": "hep-ex/0304035", "version": "v1", "published": "2003-04-24T12:44:03.000Z", "updated": "2003-04-24T12:44:03.000Z", "title": "Improved Measurement of the Partial-Rate CP Asymmetry in B+ -> K0pi+ and B- -> K0bar pi- Decays", "authors": [ "Y. Unno", "K. Suzuki" ], "comment": "7 pages, 8 figures, submitted to Phys. Rev. D", "journal": "Phys.Rev.D68:011103,2003", "doi": "10.1103/PhysRevD.68.011103", "categories": [ "hep-ex" ], "abstract": "We report an improved measurement of the partial-rate CP asymmetry in B+ => K0pi+ and B- => K0bar pi- decays. The analysis is based on a data sample of 85 million BBbar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB e+ e- storage ring. We measure Acp(K0pi+-) = 0.07^{+0.09 +0.01}_{-0.08 -0.03}, where the first and second errors are statistical and systematic, respectively; the corresponding 90% confidence-level interval is -0.10 < Acp(K0pi+-) < 0.22 .", "revisions": [ { "version": "v1", "updated": "2003-04-24T12:44:03.000Z" } ], "analyses": { "subjects": [ "12.15.Hh", "11.30.Er", "13.25.Hw", "14.40.Nd" ], "keywords": [ "partial-rate cp asymmetry", "measurement", "second errors", "belle detector", "data sample" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. D" }, "note": { "typesetting": "TeX", "pages": 7, "language": "en", "license": "arXiv", "status": "editable", "inspire": 617547 } } }