Evidence For Cp Violation In B+ -> K*(892)(+)Pi(0) From A Dalitz Plot Analysis Of B+ -> K-S(0) Pi(+)Pi(0) Decays

J. P. Lees,V. Poireau,V. Tisserand,E. Grauges,A. Palano,G. Eigen,B. Stugu,D. N. Brown,L. T. Kerth,Yu. G. Kolomensky,M. J. Lee, G. Lynch,H. Koch,T. Schroeder, C. Hearty,T. S. Mattison,J. A. McKenna,R. Y. So, A. Khan,V. E. Blinov,A. R. Buzykaev,V. P. Druzhinin,V. B. Golubev,E. A. Kravchenko,A. P. Onuchin,S. I. Serednyakov,Yu. I. Skovpen,E. P. Solodov,K. Yu. Todyshev,A. J. Lankford,B. Dey,J. W. Gary,O. Long,M. Franco Sevilla,T. M. Hong, D. Kovalskyi, J. D. Richman, C. A. West,A. M. Eisner,W. S. Lockman,W. Panduro Vazquez, B. A. Schumm, A. Seiden, D. S. Chao, C. H. Cheng, B. Echenard,K. T. Flood,D. G. Hitlin,T. S. Miyashita,P. Ongmongkolkul,F. C. Porter,M. Röhrken, R. Andreassen,Z. Huard,B. T. Meadows, B. G. Pushpawela, M. D. Sokoloff, L. Sun,P. C. Bloom,W. T. Ford,A. Gaz,J. G. Smith, S. R. Wagner, R. Ayad,W. H. Toki, B. Spaan, D. Bernard,M. Verderi, S. Playfer, D. Bettoni, C. Bozzi,R. Calabrese, G. Cibinetto, E. Fioravanti, I. Garzia, E. Luppi,L. Piemontese,V. Santoro,A. Calcaterra,R. de Sangro, G. Finocchiaro,S. Martellotti, P. Patteri,I. M. Peruzzi, M. Piccolo,M. Rama, A. Zallo,R. Contri,M. R. Monge, S. Passaggio,C. Patrignani,B. Bhuyan,V. Prasad, A. Adametz,U. Uwer,H. M. Lacker,U. Mallik, C. Chen, J. Cochran, S. Prell,H. Ahmed,A. V. Gritsan,N. Arnaud,M. Davier,D. Derkach,G. Grosdidier,F. Le Diberder,A. M. Lutz, B. Malaescu,P. Roudeau,A. Stocchi, G. Wormser, D. J. Lange,D. M. Wright,J. P. Coleman,J. R. Fry,E. Gabathuler,D. Hutchcroft, D. J. Payne, C. Touramanis, A. J. Bevan,F. Di Lodovico, R. Sacco,G. Cowan,C. L. Davis,A. G. Denig,M. Fritsch,W. Gradl, K. Griessinger, A. Hafner,K. R. Schubert, R. J. Barlow,G. D. Lafferty,R. Cenci,B. Hamilton, A. Jawahery,D. A. Roberts,R. Cowan,R. Cheaib,P. M. Patel, S. H. Robertson, N. Neri,F. Palombo,L. Cremaldi, R. Godang,D. J. Summers, M. Simard,P. Taras,G. De Nardo,G. Onorato,C. Sciacca,G. Raven, C. P. Jessop,J. M. LoSecco, K. Honscheid, R. Kass, M. Margoni, M. Morandin, M. Posocco,M. Rotondo,G. Simi, F. Simonetto,R. Stroili,S. Akar, E. Ben-Haim, M. Bomben, G. R. Bonneaud,H. Briand, G. Calderini,J. Chauveau,Ph. Leruste, G. Marchiori,J. Ocariz, M. Biasini, E. Manoni,A. M. Rossi,C. Angelini,G. Batignani,S. Bettarini, M. Carpinelli,G. Casarosa, M. Chrzaszcz,F. Forti,M. A. Giorgi,A. Lusiani,B. Oberhof,E. Paoloni, G. Rizzo, J. Walsh,D. Lopes Pegna,J. Olsen,A. J. S. Smith, F. Anulli,R. Faccini,F. Ferrarotto,F. Ferroni,M. Gaspero,A. Pilloni, G. Piredda, C. Bünger,S. Dittrich,O. Grünberg,M. Hess,T. Leddig,C. Voß, R. Waldi,T. Adye, E. O. Olaiya, F. F. Wilson,S. Emery,G. Vasseur, D. Aston,D. J. Bard,C. Cartaro,M. R. Convery, J. Dorfan,G. P. Dubois-Felsmann,W. Dunwoodie,M. Ebert,R. C. Field,B. G. Fulsom,M. T. Graham,C. Hast,W. R. Innes, P. Kim,D. W. G. S. Leith,D. Lindemann,S. Luitz, V. Luth,H. L. Lynch,D. B. MacFarlane,D. R. Muller,H. Neal,M. Perl,T. Pulliam,B. N. Ratcliff,A. Roodman,R. H. Schindler,A. Snyder, D. Su, M. K. Sullivan,J. Va’vra,W. J. Wisniewski,H. W. Wulsin, M. V. Purohit, J. R. Wilson,A. Randle-Conde,S. J. Sekula,M. Bellis,P. R. Burchat, E. M. T. Puccio,M. S. Alam,J. Ernst, R. Gorodeisky, N. Guttman,D. R. Peimer, A. Soffer,S. M. Spanier,J. L. Ritchie, R. F. Schwitters, J. M. Izen, X. C. Lou,F. Bianchi,F. De Mori,A. Filippi,D. Gamba,L. Lanceri,L. Vitale, F. Martinez-Vidal,A. Oyanguren,P. Villanueva-Perez, J. Albert, Sw. Banerjee, A. Beaulieu,F. U. Bernlochner, H. H. F. Choi,G. J. King,R. Kowalewski,M. J. Lewczuk, T. Lueck,I. M. Nugent,J. M. Roney,R. J. Sobie,N. Tasneem, T. Gershon, P. F. Harrison,T. E. Latham,H. R. Band, S. Dasu, Y. Pan, R. Prepost, S. L. Wu

PHYSICAL REVIEW D（2017）

引用 13|浏览74

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摘要

We report a Dalitz plot analysis of charmless hadronic decays of charged B mesons to the final state K-S(0)pi(1) pi(0) using the full BABAR data set of 470.9 +/- 2.8 million B (B) over bar events collected at the gamma (4S) resonance. We measure the overall branching fraction and CP asymmetry to be B(B+ -> K-0 pi(+)pi(0)) = (31.8 +/- 1.8 +/- 2.1(-0.0)(+6.0)) x 10(-6) and A(CP)(B+ -> K-0 pi(+)pi(0)) = 0.07 +/- 0.05 +/- 0.03(-0.03)(+0.02), where the uncertainties are statistical, systematic, and due to the signal model, respectively. This is the first measurement of the branching fraction for B+ -> K-0 pi(+)pi(0). We find first evidence of a CP asymmetry in B+ -> K*(892)(+) pi(0) decays: A(CP)(B+ -> K*(892)(+)pi(0)) = -0.52 +/- 0.14 +/- 0.04(-0.02)(+0.04). The significance of this asymmetry, including systematic and model uncertainties, is 3.4 standard deviations. We also measure the branching fractions and CP asymmetries for three other intermediate decay modes.

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