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First Observation of CP Violation in [bar over B][superscript 0] → D[(*) over CP]h[superscript 0] Decays by a Combined Time-Dependent Analysis of BABAR and Belle Data

Author(s)
Abdesselam, A.; Adachi, I.; Adametz, A.; Adye, T.; Ahmed, H.; Aihara, H.; Akar, S.; Alam, M. S.; Albert, J.; Al Said, S.; Andreassen, R.; Angelini, C.; Anulli, F.; Arinstein, K.; Arnaud, N.; Asner, D. M.; Aston, D.; Aulchenko, V.; Aushev, T.; Ayad, R.; Babu, V.; Badhrees, I.; Bahinipati, S.; Bakich, A. M.; Band, H. R.; Banerjee, Sw.; Barberio, E.; Bard, D. J.; Barlow, R. J.; Batignani, G.; Beaulieu, A.; Bellis, M.; Ben-Haim, E.; Bernard, D.; Bernlochner, F. U.; Bettarini, S.; Bettoni, D.; Bevan, A. J.; Bhardwaj, V.; Bhuyan, B.; Bianchi, F.; Biasini, M.; Biswal, J.; Blinov, V. E.; Bloom, P. C.; Bobrov, A.; Bomben, M.; Bondar, A.; Bonneaud, G. R.; Bonvicini, G.; Bozek, A.; Bozzi, C.; Bračko, M.; Briand, H.; Browder, T. E.; Brown, D. N.; Brown, D. N.; Bünger, C.; Burchat, P. R.; Buzykaev, A. R.; Calabrese, R.; Calcaterra, A.; Calderini, G.; Carpinelli, M.; Cartaro, C.; Casarosa, G.; Cenci, R.; Červenkov, D.; Chang, P.; Chao, D. S.; Chauveau, J.; Cheaib, R.; Chekelian, V.; Chen, A.; Chen, C.; Cheng, C. H.; Cheon, B. G.; Chilikin, K.; Chistov, R.; Cho, K.; Chobanova, V.; Choi, H. H. F.; Choi, S.-K.; Chrzaszcz, M.; Cibinetto, G.; Cinabro, D.; Cochran, J.; Coleman, J. P.; Contri, R.; Convery, M. R.; Cowan, G.; Cremaldi, L.; Dalseno, J.; Dasu, S.; Davier, M.; Davis, C. L.; De Mori, F.; De Nardo, G.; Denig, A. G.; Derkach, D.; de Sangro, R.; Dey, B.; Di Lodovico, F.; Dingfelder, J.; Dittrich, S.; Doležal, Z.; Dorfan, J.; Drásal, Z.; Drutskoy, A.; Druzhinin, V. P.; Dubois-Felsmann, G. P.; Dunwoodie, W.; Dutta, D.; Ebert, M.; Echenard, B.; Eidelman, S.; Eigen, G.; Eisner, A. M.; Emery, S.; Ernst, J. A.; Faccini, R.; Farhat, H.; Fast, J. E.; Feindt, M.; Ferber, T.; Ferrarotto, F.; Ferroni, F.; Field, R. C.; Filippi, A.; Finocchiaro, G.; Fioravanti, E.; Flood, K. T.; Ford, W. T.; Forti, F.; Franco Sevilla, M.; Fritsch, M.; Fry, J. R.; Fulsom, B. G.; Gabathuler, E.; Gabyshev, N.; Gamba, D.; Garmash, A.; Gary, J. W.; Garzia, I.; Gaspero, M.; Gaur, V.; Gaz, A.; Gershon, T. J.; Getzkow, D.; Gillard, R.; Li Gioi, L.; Giorgi, M. A.; Glattauer, R.; Godang, R.; Goh, Y. M.; Goldenzweig, P.; Golob, B.; Golubev, V. B.; Gorodeisky, R.; Gradl, W.; Graham, M. T.; Grauges, E.; Griessinger, K.; Gritsan, A. V.; Grosdidier, G.; Grünberg, O.; Guttman, N.; Haba, J.; Hafner, A.; Hamilton, B.; Hara, T.; Harrison, P. F.; Hast, C.; Hayasaka, K.; Hayashii, H.; Hearty, C.; He, X. H.; Hess, M.; Hitlin, D. G.; Hong, T. M.; Honscheid, K.; Hou, W.-S.; Hsiung, Y. B.; Huard, Z.; Hutchcroft, D. E.; Iijima, T.; Inguglia, G.; Innes, W. R.; Ishikawa, A.; Itoh, R.; Iwasaki, Y.; Izen, J. M.; Jaegle, I.; Jawahery, A.; Jessop, C. P.; Joffe, D.; Joo, K. K.; Julius, T.; Kang, K. H.; Kass, R.; Kawasaki, T.; Kerth, L. T.; Khan, A.; Kiesling, C.; Kim, D. Y.; Kim, J. B.; Kim, J. H.; Kim, K. T.; Kim, P.; Kim, S. H.; Kim, Y. J.; King, G. J.; Kinoshita, K.; Ko, B. R.; Koch, H.; Kodyš, P.; Kolomensky, Yu. G.; Korpar, S.; Kovalskyi, D.; Kowalewski, R.; Kravchenko, E. A.; Križan, P.; Krokovny, P.; Kuhr, T.; Kumar, R.; Kuzmin, A.; Kwon, Y.-J.; Lacker, H. M.; Lafferty, G. D.; Lanceri, L.; Lange, D. J.; Lankford, A. J.; Latham, T. E.; Leddig, T.; Le Diberder, F.; Lee, D. H.; Lee, I. S.; Lee, M. J.; Lees, J. P.; Leith, D. W. G. S.; Leruste, Ph.; Lewczuk, M. J.; Lewis, P.; Libby, J.; Lockman, W. S.; Long, O.; Lopes Pegna, D.; LoSecco, J. M.; Lou, X. C.; Lueck, T.; Luitz, S.; Lukin, P.; Luppi, E.; Lusiani, A.; Luth, V.; Lutz, A. M.; Lynch, G.; MacFarlane, D. B.; Malaescu, B.; Mallik, U.; Manoni, E.; Marchiori, G.; Margoni, M.; Martellotti, S.; Martinez-Vidal, F.; Masuda, M.; Mattison, T. S.; Matvienko, D.; McKenna, J. A.; Meadows, B. T.; Miyabayashi, K.; Miyashita, T. S.; Miyata, H.; Mizuk, R.; Mohanty, G. B.; Moll, A.; Monge, M. R.; Moon, H. K.; Morandin, M.; Muller, D. R.; Mussa, R.; Nakano, E.; Nakazawa, H.; Nakao, M.; Nanut, T.; Nayak, M.; Neal, H.; Neri, N.; Nisar, N. K.; Nishida, S.; Nugent, I. M.; Oberhof, B.; Ocariz, J.; Ogawa, S.; Okuno, S.; Olaiya, E. O.; Olsen, J.; Ongmongkolkul, P.; Onorato, G.; Onuchin, A. P.; Onuki, Y.; Ostrowicz, W.; Oyanguren, A.; Pakhlova, G.; Pakhlov, P.; Palano, A.; Pal, B.; Palombo, F.; Pan, Y.; Panduro Vazquez, W.; Paoloni, E.; Park, C. W.; Park, H.; Passaggio, S.; Patel, P. M.; Patrignani, C.; Patteri, P.; Payne, D. J.; Pedlar, T. K.; Peimer, D. R.; Peruzzi, I. M.; Pesántez, L.; Pestotnik, R.; Petrič, M.; Piccolo, M.; Piemontese, L.; Piilonen, L. E.; Pilloni, A.; Piredda, G.; Playfer, S.; Poireau, V.; Porter, F. C.; Posocco, M.; Prasad, V.; Prell, S.; Prepost, R.; Puccio, E. M. T.; Pulliam, T.; Purohit, M. V.; Pushpawela, B. G.; Rama, M.; Randle-Conde, A.; Ratcliff, B. N.; Raven, G.; Ribežl, E.; Richman, J. D.; Ritchie, J. L.; Rizzo, G.; Roberts, D. A.; Robertson, S. H.; Röhrken, M.; Roney, J. M.; Roodman, A.; Rossi, A.; Rostomyan, A.; Rotondo, M.; Roudeau, P.; Sacco, R.; Sakai, Y.; Sandilya, S.; Santelj, L.; Santoro, V.; Sanuki, T.; Sato, Y.; Savinov, V.; Schindler, R. H.; Schneider, O.; Schnell, G.; Schroeder, T.; Schubert, K. R.; Schumm, B. A.; Schwanda, C.; Schwartz, A. J.; Schwitters, R. F.; Sciacca, C.; Seiden, A.; Sekula, S. J.; Senyo, K.; Seon, O.; Serednyakov, S. I.; Sevior, M. E.; Shapkin, M.; Shebalin, V.; Shen, C. P.; Shibata, T.-A.; Shiu, J.-G.; Simard, M.; Simi, G.; Simon, F.; Simonetto, F.; Skovpen, Yu. I.; Smith, A. J. S.; Smith, J. G.; Snyder, A.; So, R. Y.; Sobie, R. J.; Soffer, A.; Sohn, Y.-S.; Sokoloff, M. D.; Sokolov, A.; Solodov, E. P.; Solovieva, E.; Spaan, B.; Spanier, S. M.; Starič, M.; Stocchi, A.; Stroili, R.; Stugu, B.; Su, D.; Sullivan, M. K.; Sumihama, M.; Sumisawa, K.; Sumiyoshi, T.; Summers, D. J.; Sun, L.; Tamponi, U.; Taras, P.; Tasneem, N.; Teramoto, Y.; Tisserand, V.; Todyshev, K. Yu.; Toki, W. H.; Touramanis, C.; Trabelsi, K.; Tsuboyama, T.; Uchida, M.; Uglov, T.; Unno, Y.; Uno, S.; Usov, Y.; Uwer, U.; Vahsen, S. E.; Van Hulse, C.; Vanhoefer, P.; Varner, G.; Vasseur, G.; Va’vra, J.; Verderi, M.; Vinokurova, A.; Vitale, L.; Vorobyev, V.; Voß, C.; Wagner, M. N.; Wagner, S. R.; Waldi, R.; Walsh, J. J.; Wang, C. H.; Wang, M.-Z.; Wang, P.; Watanabe, Y.; West, C. A.; Williams, K. M.; Wilson, F. F.; Wilson, J. R.; Wisniewski, W. J.; Won, E.; Wormser, G.; Wright, D. M.; Wu, S. L.; Wulsin, H. W.; Yamamoto, H.; Yamaoka, J.; Yashchenko, S.; Yuan, C. Z.; Yusa, Y.; Zallo, A.; Zhang, C. C.; Zhang, Z. P.; Zhilich, V.; Zhulanov, V.; Zupanc, A.; Cowan, Ray F; ... Show more Show less
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Abstract
We report a measurement of the time-dependent CP asymmetry of [bar over B][superscript 0] → D[(*) over CP]h[superscript 0] decays, where the light neutral hadron h[superscript 0] is a π[superscript 0], η, or ω meson, and the neutral D meson is reconstructed in the CP eigenstates K[superscript +]K[superscript -], K[0 over S]π[superscript 0], or K[0 over S]ω. The measurement is performed combining the final data samples collected at the ϒ(4S) resonance by the BABAR and Belle experiments at the asymmetric-energy B factories PEP-II at SLAC and KEKB at KEK, respectively. The data samples contain (471 ± 3) × 10[superscript 6] B[bar over B] pairs recorded by the BABAR detector and (772 ± 11) × 10[superscript 6] B[bar over B] pairs recorded by the Belle detector. We measure the CP asymmetry parameters -η[subscript f]S = +0.66 ± 0.10(stat) ± 0.06(syst) and C = -0.02 ± 0.07(stat) ± 0.03(syst). These results correspond to the first observation of CP violation in [bar over B][superscript 0] → D[(*) over CP]h[superscript 0] decays. The hypothesis of no mixing-induced CP violation is excluded in these decays at the level of 5.4 standard deviations.
Date issued
2015-09
URI
http://hdl.handle.net/1721.1/98828
Department
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Abdesselam, A., et al. "First Observation of CP Violation in [bar over B][superscript 0] → D[(*) over CP]h[superscript 0] Decays by a Combined Time-Dependent Analysis of BABAR and Belle Data." Phys. Rev. Lett. 115, 121604 (September 2015). © 2015 American Physical Society
Version: Final published version
ISSN
0031-9007
1079-7114

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