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First Observation ofC PViolation in B¯0→DC P( * )h0Decays by a Combined Time-Dependent Analysis of BABAR and Belle Data

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posted on 2024-08-06, 09:38 authored by A. Abdesselam, I. Adachi, A. Adametz, T. Adye, H. Ahmed, H. Aihara, S. Akar, M. S. Alam, J. Albert, S. Al Said, R. Andreassen, C. Angelini, F. Anulli, K. Arinstein, N. Arnaud, D. M. Asner, D. Aston, V. Aulchenko, T. Aushev, R. Ayad, V. Babu, I. Badhrees, S. Bahinipati, A. M. Bakich, H. R. Band, Sw. Banerjee, E. Barberio, D. J. Bard, R. J. Barlow, G. Batignani, A. Beaulieu, M. Bellis, E. Ben-Haim, D. Bernard, F. U. Bernlochner, S. Bettarini, D. Bettoni, A. J. Bevan, V. Bhardwaj, B. Bhuyan, F. Bianchi, M. Biasini, J. Biswal, V. E. Blinov, P. C. Bloom, A. Bobrov, M. Bomben, A. Bondar, G. R. Bonneaud, G. Bonvicini, A. Bozek, C. Bozzi, M. Bračko, H. Briand, T. E. Browder, D. N. Brown, C. Bünger, P. R. Burchat, A. R. Buzykaev, R. Calabrese, A. Calcaterra, G. Calderini, M. Carpinelli, C. Cartaro, G. Casarosa, R. Cenci, D. Červenkov, P. Chang, D. S. Chao, J. Chauveau, R. Cheaib, V. Chekelian, A. Chen, C. Chen, C. H. Cheng, B. G. Cheon, K. Chilikin, R. Chistov, K. Cho, V. Chobanova, H. H. F. Choi, S.-K. Choi, M. Chrzaszcz, G. Cibinetto, D. Cinabro, J. Cochran, J. P. Coleman, R. Contri, M. R. Convery, G. Cowan, R. Cowan, L. Cremaldi, J. Dalseno, S. Dasu, M. Davier, C. L. Davis, F. De Mori, G. De Nardo, A. G. Denig, D. Derkach, R. de Sangro, B. Dey, F. Di Lodovico, J. Dingfelder, S. Dittrich, Z. Doležal, J. Dorfan, Z. Drásal, A. Drutskoy, V. P. Druzhinin, G. P. Dubois-Felsmann, W. Dunwoodie, D. Dutta, M. Ebert, B. Echenard, S. Eidelman, G. Eigen, A. M. Eisner, S. Emery, J. A. Ernst, R. Faccini, H. Farhat, J. E. Fast, M. Feindt, T. Ferber, F. Ferrarotto, F. Ferroni, R. C. Field, A. Filippi, G. Finocchiaro, E. Fioravanti, K. T. Flood, W. T. Ford, F. Forti, M. Franco Sevilla, M. Fritsch, J. R. Fry, B. G. Fulsom, E. Gabathuler, N. Gabyshev, D. Gamba, A. Garmash, J. W. Gary, I. Garzia, M. Gaspero, V. Gaur, A. Gaz, T. J. Gershon, D. Getzkow, R. Gillard, L. Li Gioi, M. A. Giorgi, R. Glattauer, R. Godang, Y. M. Goh, P. Goldenzweig, B. Golob, V. B. Golubev, R. Gorodeisky, W. Gradl, M. T. Graham, E. Grauges, K. Griessinger, A. V. Gritsan, G. Grosdidier, O. Grünberg, N. Guttman, J. Haba, A. Hafner, B. Hamilton, T. Hara, P. F. Harrison, C. Hast, K. Hayasaka, H. Hayashii, C. Hearty, X. H. He, M. Hess, D. G. Hitlin, T. M. Hong, K. Honscheid, W.-S. Hou, Y. B. Hsiung, Z. Huard, D. E. Hutchcroft, T. Iijima, G. Inguglia, W. R. Innes, A. Ishikawa, R. Itoh, Y. Iwasaki, J. M. Izen, I. Jaegle, A. Jawahery, C. P. Jessop, D. Joffe, K. K. Joo, T'Mir Julius, K. H. Kang, R. Kass, T. Kawasaki, L. T. Kerth, A. Khan, C. Kiesling, D. Y. Kim, J. B. Kim, J. H. Kim, K. T. Kim, P. Kim, S. H. Kim, Y. J. Kim, G. J. King, K. Kinoshita, B. R. Ko, H. Koch, P. Kodyš, Yu. G. Kolomensky, S. Korpar, D. Kovalskyi, R. Kowalewski, E. A. Kravchenko, P. Križan, P. Krokovny, T. Kuhr, R. Kumar, A. Kuzmin, Y.-J. Kwon, H. M. Lacker, G. D. Lafferty, L. Lanceri, D. J. Lange, A. J. Lankford, T. E. Latham, T. Leddig, F. Le Diberder, D. H. Lee, I. S. Lee, M. J. Lee, J. P. Lees, D. W. G. S. Leith, Ph. Leruste, M. J. Lewczuk, P. Lewis, J. Libby, W. S. Lockman, O. Long, D. Lopes Pegna, J. M. LoSecco, X. C. Lou, T. Lueck, S. Luitz, P. Lukin, E. Luppi, A. Lusiani, V. Luth, A. M. Lutz, G. Lynch, D. B. MacFarlane, B. Malaescu, U. Mallik, E. Manoni, G. Marchiori, M. Margoni, S. Martellotti, F. Martinez-Vidal, M. Masuda, T. S. Mattison, D. Matvienko, J. A. McKenna, B. T. Meadows, K. Miyabayashi, T. S. Miyashita, H. Miyata, R. Mizuk, G. B. Mohanty, A. Moll, M. R. Monge, H. K. Moon, M. Morandin, D. R. Muller, R. Mussa, E. Nakano, H. Nakazawa, M. Nakao, T. Nanut, M. Nayak, H. Neal, N. Neri, N. K. Nisar, S. Nishida, I. M. Nugent, B. Oberhof, J. Ocariz, S. Ogawa, S. Okuno, E. O. Olaiya, J. Olsen, P. Ongmongkolkul, G. Onorato, A. P. Onuchin, Y. Onuki, W. Ostrowicz, A. Oyanguren, G. Pakhlova, P. Pakhlov, A. Palano, B. Pal, F. Palombo, Y. Pan, W. Panduro Vazquez, E. Paoloni, C. W. Park, H. Park, S. Passaggio, P. M. Patel, C. Patrignani, P. Patteri, D. J. 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We report a measurement of the time-dependent CP asymmetry of B¯0→DCP(∗)h0 decays, where the light neutral hadron h0 is a π0, η, or ω meson, and the neutral D meson is reconstructed in the CP eigenstates K+K-, KS0π0, or KS0ω. The measurement is performed combining the final data samples collected at the (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)×106BB¯ pairs recorded by the BABAR detector and (772±11)×106BB¯ pairs recorded by the Belle detector. We measure the CP asymmetry parameters -ηfS=+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 B¯0→DCP(∗)h0 decays. The hypothesis of no mixing-induced CP violation is excluded in these decays at the level of 5.4 standard deviations.

Funding

Ministry of Education Youth and Sports

European Commission

United States Department of Energy

Ministry of Education

Ministry of Science and ICT

Office of Science

Directorate for Mathematical & Physical Sciences

Federal Ministry of Education and Research

Entertainment Industry Foundation

Australian Research Council

Ikerbasque

Natural Sciences and Engineering Research Council

Alfred P. Sloan Foundation

Dutch Research Council

Deutsche Forschungsgemeinschaft

National Science Foundation

FWF Austrian Science Fund

National Research Foundation of Korea

National Institute for Nuclear Physics

Japan Society for the Promotion of Science

Department of Science and Technology

Science and Technology Facilities Council

Korea Institute of Science & Technology Information

Ministry of Science and Higher Education

Slovenian Research Agency

Ministry of Education of the People's Republic of China

French National Centre for Scientific Research

United States-Israel Binational Science Foundation

Ministry of Economy, Industry and Competitiveness

National Science and Technology Council

National Science Center

Atomic Energy and Alternative Energies Commission

National Natural Science Foundation of China

Swiss National Science Foundation

History

Available versions

PDF (Published version)

ISSN

0031-9007

Journal title

Physical Review Letters

Volume

115

Issue

12

Article number

article no. 121604

Pagination

121604-

Publisher

American Physical Society

Copyright statement

Copyright © 2015 American Physical Society. The published version is reproduced in accordance with the copyright policy of the publisher.

Language

eng

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