Study of time-dependent CP violation in B 0 → J/ Ψπ 0 decays 261801

S. U. Kataoka, K. Abe, K. Abe, I. Adachi, H. Aihara, M. Akatsu, Y. Asano, T. Aushev, S. Bahinipati, A. M. Bakich, A. Bay, I. Bedny, U. Bitenc, I. Bizjak, A. Bondar, M. Bračko, Y. Chao, A. Chen, W. T. Chen, B. G. CheonR. Chistov, Y. Choi, M. Danilov, M. Dash, L. Y. Dong, J. Dragic, S. Eidelman, V. Eiges, Y. Enari, F. Fang, S. Fratina, N. Gabyshev, A. Garmash, T. Gershon, A. Go, G. Gokhroo, B. Golob, J. Haba, K. Hara, N. C. Hastings, K. Hayasaka, H. Hayashii, M. Hazumi, T. Higuchi, L. Hinz, T. Hokuue, Y. Hoshi, S. Hou, W. S. Hou, Y. B. Hsiung, T. Iijima, A. Imoto, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, M. Iwasaki, Y. Iwasaki, J. H. Kang, J. S. Kang, P. Kapusta, N. Katayama, H. Kawai, T. Kawasaki, H. R. Khan, H. J. Kim, K. Kinoshita, P. Koppenburg, S. Korpar, P. Križan, P. Krokovny, C. C. Kuo, A. Kuzmin, Y. J. Kwon, J. S. Lange, G. Leder, S. E. Lee, S. H. Lee, T. Lesiak, J. Li, S. W. Lin, J. MacNaughton, F. Mandl, T. Matsumoto, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, D. Mohapatra, T. Mori, T. Nagamine, Y. Nagasaka, E. Nakano, H. Nakazawa, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, Y. Onuki, W. Ostrowicz, H. Ozaki, P. Pakhlov, H. Palka, H. Park, L. S. Peak, L. E. Piilonen, F. J. Ronga, M. Rozanska, H. Sagawa, Y. Sakai, N. Sato, T. Schietinger, O. Schneider, J. Schumann, A. J. Schwartz, S. Semenov, K. Senyo, M. E. Sevior, T. Shibata, H. Shibuya, J. B. Singh, A. Somov, N. Soni, R. Stamen, M. Staric, K. Sumisawa, T. Sumiyoshi, O. Tajima, F. Takasaki, N. Tamura, M. Tanaka, G. N. Taylor, Y. Teramoto, K. Trabelsi, T. Tsukamoto, K. Ueno, S. Uno, G. Varner, S. Villa, C. C. Wang, C. H. Wang, M. Watanabe, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, H. Yang, J. Ying, Y. Yuan, S. L. Zang, C. C. Zhang, J. Zhang, L. M. Zhang, Z. P. Zhang, V. Zhilich, T. Ziegler, D. Žontar

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Abstract

The CP asymmetry parameters in the decay B 0(B̄ 0) → J/ψπ 0, were described. The measurement of the CP asymmetry parameters was based on a 140 fb -1 data sample, which was accumulated at the γ(4S) resonance by the Belle detector at the KEKB asymmetric-energy e +e - collider. It was observed that one neutral B meson flavor was identified by its decay products. The results show values of the CP-violating parameters were found to be of the order of S J/ψπ o = -0.72∓0.42(stat)∓0.09(syst) and A J/ψπ 0 = -0.01∓0.29(stat)∓0. 03(syst).

Original languageEnglish
Article number261801
JournalPhysical Review Letters
Volume93
Issue number26 I
DOIs
Publication statusPublished - Dec 31 2004

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Kataoka, S. U., Abe, K., Abe, K., Adachi, I., Aihara, H., Akatsu, M., Asano, Y., Aushev, T., Bahinipati, S., Bakich, A. M., Bay, A., Bedny, I., Bitenc, U., Bizjak, I., Bondar, A., Bračko, M., Chao, Y., Chen, A., Chen, W. T., ... Žontar, D. (2004). Study of time-dependent CP violation in B 0 → J/ Ψπ 0 decays 261801. Physical Review Letters, 93(26 I), [261801]. https://doi.org/10.1103/PhysRevLett.93.261801