Search for CP violation in the decays D±→KS0K ±, Ds±→KS0K±, and Ds±→KS0π±

J. P. Lees,V. Poireau,V. Tisserand,E. Grauges, A. Palano,G. Eigen,B. Stugu,D. N. Brown, L. T. Kerth,Yu. G. Kolomensky, G. Lynch,Herbert Koch, T. Schroeder, D. J. Asgeirsson,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. N. Yushkov, D. Kirkby,A. J. Lankford,M. Mandelkern,Biplab Dey, J. W. Gary,Owen Rosser Long, G. M. Vitug,Claudio Campagnari,M. Franco Sevilla,T. M. Hong,Dmytro Kovalskyi, J. D. Richman,Christopher West, A. M. Eisner, W. S. Lockman,A. J. Martinez,Bruce Schumm,A. Seiden, D. S. Chao, C. H. Cheng, B. Echenard, K. T. Flood,D. G. Hitlin, P. Ongmongkolkul,F. C. Porter, A. Y. Rakitin, R. Andreassen,Z. C. Huard, B. T. Meadows, M. D. Sokoloff, L. Sun, P. C. Bloom,W. T. Ford,Alessandro Gaz, U. Nauenberg, J. G. Smith,Stephen Robert Wagner, R. Ayad, W. H. Toki, B. Spaan, K. R. Schubert, R. Schwierz, D. Bernard, M. Verderi,P. J. Clark, S. Playfer, D. Bettoni,C. Bozzi,Roberto Calabrese,G. Cibinetto, E. Fioravanti, I. Garzia,Eleonora Luppi, L. Piemontese,V. Santoro, R. Baldini-Ferroli,A. Calcaterra,R. de Sangro,G. Finocchiaro, P. Patteri,I. M. Peruzzi, M. Piccolo,Matteo Rama, A. Zallo, R. Contri,Elisa Guido,M. Lo Vetere,Maria Roberta Monge, S. Passaggio,C. Patrignani,Enrico Robutti, B. Bhuyan,V. Prasad,M. Morii, A. Adametz,U. Uwer,Heiko Lacker, T. Lueck, P. D. Dauncey, U. Mallik,Chunhui Chen,James H Cochran, W. T. Meyer, S. Prell, A. E. Rubin,Andrei Gritsan, N. Arnaud, M. Davier,Denis Derkach, G. Grosdidier,F. Le Diberder, A. M. Lutz, B. Malaescu, P. Roudeau, M. H. Schune,A. Stocchi, G. Wormser, D. J. Lange,Douglas Wright,J. P. Coleman, J. R. Fry, E. Gabathuler,D. E. Hutchcroft, D. J. Payne, C. Touramanis,Adrian John Bevan,F. Di Lodovico, R. Sacco, M. Sigamani,G. A. Cowan, C. L. Davis, A. G. Denig, M. Fritsch, W. Gradl, K. Griessinger, A. Hafner, E. Prencipe,R. J. Barlow,G. D. Lafferty, E. Behn,R. Cenci, B. Hamilton, A. Jawahery,D. A. Roberts,C. Dallapiccola, R. Cowan, D. Dujmic, G. Sciolla,R. Cheaib, P. M. Patel,S. H. Robertson, P. Biassoni,Nicola Neri, F. Palombo, L. M. Cremaldi,R. Godang, R. Kroeger, P. Sonnek, D. J. Summers,X. Nguyen, M. Simard, P. Taras,G. De Nardo, D. Monorchio,G. Onorato,Crisostomo Sciacca,Maurizio Martinelli,G. Raven,Colin Jessop,J. M. LoSecco, K. Honscheid, R. D. Kass,J. E. Brau,R. Frey,N. B. Sinev, D. M. Strom,E. Torrence,E. Feltresi, N. Gagliardi,Martino Margoni,Mauro Morandin,Alexis Pompili, M. Posocco,Marcello Rotondo,Gabriele Simi, F. Simonetto,R. Stroili,Simon Akar, E. Ben-Haim,Marco Bomben,G. R. Bonneaud, H. Briand, G. Calderini, J. Chauveau, O. Hamon,Ph Leruste,G. Marchiori, J. Ocariz, S. Sitt,Maurizio Biasini,Elisa Manoni,S. Pacetti,Alessandro Rossi,Corrado Angelini, G. Batignani,S. Bettarini, M. Carpinelli,Giulia Casarosa,Alberto Cervelli, F. Forti,Mario Giorgi, A. Lusiani, B. Oberhof,E. Paoloni, Andrea Rodriguez Perez,G. Rizzo, J. J. Walsh,D. Lopes Pegna,James D. Olsen, A. J.S. Smith, F. Anulli,R. Faccini,F. Ferrarotto, F. Ferroni, M. Gaspero,L. Li Gioi,M. A. Mazzoni, G. Piredda, C. Bünger, O. Grünberg, T. Hartmann, T. Leddig, C. Voß,Roland Waldi,Tim Adye,E. O. Olaiya,F. F. Wilson, S. Emery, G. Hamel de Monchenault, G. Vasseur,Ch Yèche, D. Aston,D. J. Bard,J. F. Benitez, C. Cartaro,M. R. Convery, J. Dorfan,G. P. Dubois-Felsmann, W. Dunwoodie,M. Ebert,R. C. Field,B. G. Fulsom, A. M. Gabareen, M. T. Graham, C. Hast,W. R. Innes,M. H. Kelsey,Peter S. Kim,M. L. Kocian, D. W. G. S. Leith,P. Lewis, D. Lindemann, B. Lindquist,S. Luitz, V. Luth,H. L. Lynch,D. B. MacFarlane,Dominik Müller, H. A. Neal,S. Nelson,M. L. Perl, T. Pulliam,B. N. Ratcliff,A. Roodman,A. A. Salnikov,R. H. Schindler, A. Snyder,D. Su,M. K. Sullivan,J. Va’vra,A. P. Wagner, Weitao Wang,W. J. Wisniewski,M. Wittgen,D. H. Wright, H. W. Wulsin,V. Ziegler, W. Park,M. V. Purohit,R. M. White,James R. Wilson, Aidan Randle-Conde, Stephen Sekula,M. Bellis,P. R. Burchat, T. S. Miyashita, E. M. T. Puccio,M. S. Alam,J. A. Ernst, R. Gorodeisky, N. Guttman, D. R. Peimer,Abner Soffer,S. M. Spanier,J. L. Ritchie, A. M. Ruland,R. F. Schwitters, B. C. Wray,Joseph Izen,X. C. Lou, F. Bianchi, D. Gamba,S. Zambito,L. Lanceri,L. Vitale, F. Martinez-Vidal,A. Oyanguren, Pablo Villanueva-Perez,H. Ahmed,J. Albert,Sw. Banerjee, Florian Urs Bernlochner, H. H. F. Choi, G. J. King,R. Kowalewski, M. J. Lewczuk,I. M. Nugent,J. M. Roney,R. J. Sobie,N. Tasneem, T. J. Gershon,Paul Fraser Harrison,T. E. Latham,H. R. Band,Sridhara Dasu, Y. B. Pan, R. Prepost,S. L. Wu

Physical Review D（2013）

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Abstract

We report a search for CP violation in the decay modes D±→KS0K±, Ds±→KS0K±, and Ds±→KS0π± using a data set corresponding to an integrated luminosity of 469 fb-1 collected with the BABAR detector at the PEP-II asymmetric energy e+e- storage rings. The decay rate CP asymmetries, ACP, are determined to be (+0.13±0.36(stat)±0.25(syst))%, (-0.05±0.23(stat)±0.24(syst))%, and (+0.6±2.0(stat)±0.3(syst))%, respectively. These measurements are consistent with zero, and also with the Standard Model prediction [(-0.332±0.006)% for the D±→KS0K± and Ds±→KS0K± modes, and (+0.332±0.006)% for the Ds±→KS0π± mode]. They are the most precise determinations to date.

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