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Measurement of CP-violation Asymmetries in D^{0}→K_{S}^{0}π^{+}π^{-}

T. Aaltonen,Barbara Álvarez González,S. Amerio,D. Amidei,A. Anastassov,A. Annovi,J. Antoš,G. Apollinari,J. A. Appel,T. Arisawa,A. Artikov, J. Asaadi,W. Ashmanskas,B. Auerbach,A. Aurisano,F. Azfar,W. Badgett,T. Bae,A. Barbaro-Galtieri,V. E. Barnes,B. A. Barnett,Patrizia Barria,Pavol Bartoš,Matteo Bauce,F. Bedeschi,S. Behari,G. Bellettini,J. Bellinger,D. Benjamin,A. Beretvas,A. Bhatti,D. Bisello,I. Bizjak,K. R. Bland,Barry Blumenfeld,A. Bocci,A. Bodek,D. Bortoletto,J. Boudreau,A. Boveia,L. Brigliadori,C. Bromberg,Erik Brücken,J. Budagov,H. S. Budd,K. Burkett,G. Busetto,P. Bussey,A. Buzatu,A. Calamba,C. Calancha,Stefano Camarda,M. Campanelli,M. Campbell,F. Canelli, B. Carls,D. Carlsmith,R. Carosi,S. Carrillo,S. Carron,B. Casal,Massimo Casarsa,Andrea Castro,P. Catastini,D. Cauz,V. Cavaliere, M. Cavalli‐Sforza,A. Cerri,L. Cerrito,Y. C. Chen,Maxwell Chertok,G. Chiarelli,G. Chlachidze,Frank Chlebana,K. Cho,D. Chokheli,W. H. Chung,Y. S. Chung,M. A. Ciocci,A. Clark,C. Clarke,G. Compostella,M. E. Convery,J. Conway,M. Corbo,M. Cordelli,C. A. Cox,D. J. Cox,F. Crescioli,Javier Cuevas,R. Culbertson,D. Dagenhart, N. dʼAscenzo, M. Datta,P. de Barbaro,M. Dell’Orso,L. Demortier, M. Deninno,F. Devoto,M. d’Errico,A. Di Canto,B. Di Ruzza,Jay Dittmann,M. D’Onofrio, S. Donati,P. Dong,M. Dorigo,Tommaso Dorigo,K. Ebina,A. Elagin,A. Eppig, Robin Erbacher,S. Errede,N. Ershaidat, Ricardo Eusebi,Sinead Farrington,M. Feindt,J. P. Fernández,Richard D Field,G. Flanagan,R. Forrest,M. J. Frank,M. Franklin, J. Freeman,Y. Funakoshi,I. Furić,Michele Gallinaro,J. E. Garcia,A. F. Garfinkel, P. Garosi,H. Gerberich,E. Gerchtein,S. Giagu, Viktoria Athina Giakoumopoulou,P. Giannetti,K. Gibson,C. M. Ginsburg,N. Giokaris, P. Giromini, G. Giurgiu,V. Glagolev,D. Glenzinski,M. Gold,D. Goldin,N. Goldschmidt,A. Golossanov,G. Gómez, G. Gómez-Ceballos,Maxim Goncharov,O. González,I. Gorelov, A. T. Goshaw,K. Goulianos,S. Grinstein,C. Grosso-Pilcher, R. C. Group, J. Guimarães da Costa, S. R. Hahn, E. Halkiadakis, A. Hamaguchi, Jiyeon Han, F. Happacher, K. Hara,D. Hare, M. Hare, Robert Harr, Kenichi Hatakeyama, Chris Hays, M. Heck, J. Heinrich, Matthew Herndon, S. Hewamanage, A. Höcker, W. Hopkins, David Horn, S. Hou, R. Hughes, M. Hurwitz, Ulrich Husemann, Nur Hussain, M. Hussein, J. Huston, G. Introzzi, M. Iori, A. Ivanov, E. James, D. Jang, Bodhitha Jayatilaka, E. J. Jeon, Sergo Jindariani, M. Jones, K. K. Joo, S. Y. Jun, T. R. Junk, T. Kamon, P. E. Karchin, A. Kasmi, Y. Kato, W. Ketchum, J. Keung, V. Khotilovich, Benjamin Kilminster, D. H. Kim, H. S. Kim,J. E. Kim, M. J. Kim, S. B. Kim, S. H. Kim,Y. K. Kim, Y. J. Kim, N. Kimura, M. Kirby, S. Klimenko, K. J. Knoepfel, K. Kondo, D. J. Kong, J. Konigsberg, Ashutosh Kotwal, M. Kreps, J. Kroll, D. Krop, Mark Kruse, Vyacheslav Krutelyov, T. Kuhr, M. Kurata, S. Kwang, A. T. Laasanen, S. Lami, Stephan Lammel, M. Lancaster, R. Lander, Kevin Lannon, A. Lath, G. Latino, T. LeCompte, E. Lee, H. S. Lee,J. S. Lee, S. W. Lee, S. Leo, S. Leone, J. D. Lewis, A. Limosani, C.-J. Lin, M. Lindgren, E. Lipeles, A. Lister, D. O. Litvintsev, C. Liu, H. Liu, Q. Liu, T. Liu, S. Lockwitz, A. Loginov, D. Lucchesi, J. Lueck, P. Lujan, P. Lukens, G. Lungu, J. Lys, R. Lysák, R. Madrak, Kaori Maeshima, P. Maestro, Sarah Malik, G. Manca, A. Manousakis-Katsikakis, F. Margaroli, C. Marino, M. Martı́nez, Paolo Mastrandrea, K. Matera, M. E. Mattson, A. Mazzacane, P. Mazzanti, K. S. McFarland, P. McIntyre, R. McNulty, A. Mehta, P. Mehtälä, C. Mesropian, T. Miao, D. Mietlicki, A. Mitra, H. Miyake, S. Moêd, N. Moggi, M. N. Mondragón, Chang-Seong Moon, R. Moore, M. J. Morello, J. Morlock, P. Movilla Fernandez, A. Mukherjee, Th. Müller, P. Murat, M. Mussini, Jane Nachtman, Y. Nagai, J. Naganoma, I. Nakano, A. Napier, J. Nett, Christopher Neu, Mark Neubauer, J. Nielsen, L. Nodulman, S. Y. Noh, O. Norniella, L. Oakes, S. H. Oh, Y. D. Oh, I. Oksuzian, T. Okusawa, R. Orava, L. Ortolan, Simone Pagan Griso, C. Pagliarone, E. Palencia, V. Papadimitriou, Alexander Paramonov, J. Patrick, G. Pauletta, M. Paulini, C. Paus, Dave Pellett, A. Penzo, T. J. Phillips, G. Piacentino, Elisabetta Pianori, J. Pilot, K. Pitts, C. Plager, L. Pondrom, S. Poprocki, K. Potamianos, F. Prokoshin, A. Pranko, F. Ptohos, G. Punzi, A. Rahaman, V. Ramakrishnan, N. Ranjan, I. Redondo, P. Renton, M. Rescigno, T. Riddick, F. Rimondi, Luciano Ristori, A. Robson, T. Rodrigo, T. Rodriguez, E. Rogers, S. Rolli, R. Roser, F. Ruffini, A. Ruiz, J. Russ, V. Rusu, Alexei Safonov, W. K. Sakumoto, Y. Sakurai, L. Santi, K. Sato, V. Saveliev, Aurore Savoy-Navarro, P. Schlabach, Alexander Schmidt, E. E. Schmidt, Thomas Schwarz, Luca Scodellaro, A. Scribano, F. Scuri, Sally Seidel, Y. Seiya, A. Semenov, Federico Sforza, S. Z. Shalhout, T. Shears, P. F. Shepard, M. Shimojima, Mel Shochet, I. Shreyber-Tecker, А. Симоненко, P. Sinervo, K. Sliwa, John R. Smith, F. D. Snider, Aron Soha, V. Sorı́n, H. Song, P. Squillacioti, M. Stancari, R. St. Denis, B. Stelzer, Oliver Stelzer-Chilton, D. Stentz, John Strologas, G. L. Strycker, Y. Sudo, А. Суханов, И. Суслов, K. Takemasa, Y. Takeuchi, J. Tang, M. Tecchio, P. K. Teng, Julia Thom, J. Thome, G. A. Thompson, E. Thomson, D. Toback, S. Tokár, K. Tollefson, T. Tomura, D. Tonelli, S. Torre, D. Torretta, P. Totaro, M. Trovato, F. Ukegawa, S. Uozumi, A. Varganov, F. Vázquez, G. Velev, C. Vellidis, M. Vidal, Iván Vila, R. Vilar, J. Vizán, M. Vogel, G. Volpi, P. Wagner, R. L. Wagner, T. Wakisaka, Rainer Wallny, S. M. Wang, A. Warburton, D. Waters, W. C. Wester, Daniel Whiteson, A. B. Wicklund, E. Wicklund, S. Wilbur, F. Wick, H. H. Williams, J. S. Wilson, P. Wilson, B. L. Winer, Peter Wittich, S. Wolbers, H. Wolfe, T. Wright, Xin Wu, Z. Wu, K. Yamamoto, D. Yamato, T. Yang, Unki Yang, Yong Yang, W-M. Yao, G. P. Yeh, K. Yi, J. Yoh, Kohei Yorita, T. Yoshida, G. B. Yu, I. Yu, S. S. Yu, J. C. Yun, A. Zanetti, Y. Zeng, Zhou Chen, S. Zucchelli

Physical review D Particles, fields, gravitation, and cosmology/Physical review D, Particles, fields, gravitation, and cosmology(2012)

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摘要
We report a measurement of time-integrated CP-violation asymmetries in the resonant substructure of the three-body decay D0 to Ks pi+ pi- using CDF II data corresponding to 6.0 invfb of integrated luminosity from Tevatron ppbar collisions at sqrt(s) = 1.96 TeV. The charm mesons used in this analysis come from D*+(2010) to D0 pi+ and D*-(2010) to D0bar pi-, where the production flavor of the charm meson is determined by the charge of the accompanying pion. We apply a Dalitz-amplitude analysis for the description of the dynamic decay structure and use two complementary approaches, namely a full Dalitz-plot fit employing the isobar model for the contributing resonances and a model-independent bin-by-bin comparison of the D0 and D0bar Dalitz plots. We find no CP-violation effects and measure an asymmetry of ACP = (-0.05 +- 0.57 (stat) +- 0.54 (syst))% for the overall integrated CP-violation asymmetry, consistent with the standard model prediction.
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