Measurement of Time-Dependent CP-Violating Asymmetries in B0 → φ Ks0, K+K- K s0 and η′ Ks0 Decays

K. Abe, K. Abe, T. Abe, I. Adachi, H. Aihara, K. Akai, M. Akatsu, Y. Asano, T. Aso, T. Aushev, S. Bahinipati, A. M. Bakich, Y. Ban, S. Banerjee, I. Bedny, I. Bizjak, A. Bondar, A. Bozek, M. Bračko, J. BrodzickaT. E. Browder, M. C. Chang, P. Chang, Y. Chao, K. F. Chen, B. G. Cheon, R. Chistov, S. K. Choi, Y. Choi, Y. K. Choi, A. Chuvikov, M. Danilov, L. Y. Dong, S. Eidelman, V. Eiges, Y. Enari, J. Flanagan, C. Fukunaga, K. Furukawa, N. Gabyshev, A. Garmash, T. Gershon, B. Golob, R. Guo, J. Haba, C. Hagner, K. Hara, T. Hara, N. C. Hastings, H. Hayashii, M. Hazumi, I. Higuchi, T. Higuchi, T. Hokuue, Y. Hoshi, W. S. Hou, Y. B. Hsiung, H. C. Huang, Y. Igarashi, T. Iijima, H. Ikeda, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, H. Iwasaki, M. Iwasaki, Y. Iwasaki, T. Kamitani, J. H. Kang, J. S. Kang, P. Kapusta, S. U. Kataoka, N. Katayama, H. Kawai, H. Kawai, T. Kawasaki, H. Kichimi, M. Kikuchi, E. Kikutani, H. J. Kim, H. Kim, J. H. Kim, S. K. Kim, K. Kinoshita, H. Koiso, P. Koppenburg, S. Korpar, P. Križan, P. Krokovny, S. Kumar, Y. J. Kwon, J. S. Lange, G. Leder, S. H. Lee, T. Lesiak, J. Li, A. Limosani, S. W. Lin, D. Liventsev, J. MacNaughton, F. Mandl, D. Marlow, M. Masuzawa, T. Matsumoto, A. Matyja, S. Michizono, T. Mimashi, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, D. Mohapatra, T. Mori, A. Murakami, T. Nagamine, Y. Nagasaka, T. Nakadaira, T. T. Nakamura, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, T. Nozaki, S. Ogawa, Y. Ogawa, K. Ohmi, Y. Ohnishi, T. Ohshima, N. Ohuchi, K. Oide, T. Okabe, S. Okuno, S. L. Olsen, Y. Onuki, W. Ostrowicz, H. Ozaki, P. Pakhlov, H. Palka, C. W. Park, H. Park, M. Peters, L. E. Piilonen, N. Root, M. Rozanska, H. Sagawa, S. Saitoh, Y. Sakai, M. Satapathy, A. Satpathy, O. Schneider, J. Schümann, C. Schwanda, A. J. Schwartz, S. Semenov, K. Senyo, M. E. Sevior, T. Shibata, H. Shibuya, T. Shidara, B. Shwartz, V. Sidorov, J. B. Singh, N. Soni, S. Stanič, R. Sugahara, A. Sugi, T. Sugimura, A. Sugiyama, K. Sumisawa, T. Sumiyoshi, K. Suzuki, S. Suzuki, S. Y. Suzuki, F. Takasaki, N. Tamura, J. Tanaka, M. Tanaka, M. Tawada, Y. Teramoto, T. Tomura, K. Trabelsi, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. Ueno, Y. Unno, S. Uno, Y. Ushiroda, S. E. Vahsen, G. Varner, K. E. Varvell, C. C. Wang, C. H. Wang, J. G. Wang, M. Z. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, A. Yamaguchi, H. Yamamoto, N. Yamamoto, Y. Yamashita, M. Yamauchi, H. Yanai, Heyoung Yang, J. Ying, M. Yokoyama, M. Yoshida, Y. Yuan, Y. Yusa, C. C. Zhang, J. Zhang, Z. P. Zhang, Y. Zheng, V. Zhilich, D. Žontar, D. Zürcher

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Abstract

An improved measurement of the CP-violation parameters in decays based on a 140 fb-1 data sample was presented. One neutral B meson was reconstructed in one of the specified decay channels. Results show that there is a large CP-violating phase in its decay amplitude. It was also observed that the CP asymmetry in the decay differs from the standard model expectation by 3. 5 standard deviations.

Original languageEnglish (US)
Article number261602
Pages (from-to)2616021-2616026
Number of pages6
JournalPhysical review letters
Volume91
Issue number26 I
StatePublished - Dec 31 2003

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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    Abe, K., Abe, K., Abe, T., Adachi, I., Aihara, H., Akai, K., Akatsu, M., Asano, Y., Aso, T., Aushev, T., Bahinipati, S., Bakich, A. M., Ban, Y., Banerjee, S., Bedny, I., Bizjak, I., Bondar, A., Bozek, A., Bračko, M., ... Zürcher, D. (2003). Measurement of Time-Dependent CP-Violating Asymmetries in B0 → φ Ks0, K+K- K s0 and η′ Ks0 Decays. Physical review letters, 91(26 I), 2616021-2616026. [261602].