Time-dependent CP-violating asymmetries in b→sq q transitions

K. F. Chen, F. Fang, A. Garmash, K. Hara, M. Hazumi, T. Higuchi, H. Kakuno, A. Kusaka, T. Shibata, O. Tajima, K. Trabelsi, T. Ziegler, K. Abe, K. Abe, H. Aihara, Y. Asano, T. Aushev, S. Bahinipati, A. M. Bakich, Y. BanE. Barberio, M. Barbero, A. Bay, I. Bedny, U. Bitenc, I. Bizjak, S. Blyth, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. Browder, P. Chang, Y. Chao, A. Chen, W. T. Chen, B. G. Cheon, R. Chistov, S. K. Choi, Y. Choi, Y. K. Choi, A. Chuvikov, J. Dalseno, M. Danilov, M. Dash, L. Y. Dong, A. Drutskoy, S. Eidelman, Y. Enari, S. Fratina, N. Gabyshev, T. Gershon, G. Gokhroo, B. Golob, A. Gorišek, J. Haba, T. Hara, H. Hayashii, 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, S. U. Kataoka, N. Katayama, H. Kawai, T. Kawasaki, H. R. Khan, H. Kichimi, H. J. Kim, S. M. Kim, K. Kinoshita, S. Korpar, P. Križan, P. Krokovny, S. Kumar, C. C. Kuo, A. Kuzmin, Youngjoon Kwon, G. Leder, S. E. Lee, T. Lesiak, J. Li, S. W. Lin, D. Liventsev, G. Majumder, F. Mandl, D. Marlow, T. Matsumoto, A. Matyja, Y. Mikami, W. Mitaroff, K. Miyabayashi, H. Miyake, H. Miyata, R. Mizuk, T. Nagamine, Y. Nagasaka, I. Nakamura, E. Nakano, M. Nakao, Z. Natkaniec, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. Okuno, S. L. Olsen, Y. Onuki, W. Ostrowicz, P. Pakhlov, H. Palka, C. W. Park, H. Park, N. Parslow, L. S. Peak, R. Pestotnik, L. E. Piilonen, M. Rozanska, H. Sagawa, Y. Sakai, T. R. Sarangi, N. Sato, T. Schietinger, O. Schneider, P. Schönmeier, J. Schümann, C. Schwanda, A. J. Schwartz, K. Senyo, M. E. Sevior, H. Shibuya, B. Shwartz, V. Sidorov, A. Somov, N. Soni, R. Stamen, S. Stanič, M. Starič, K. Sumisawa, T. Sumiyoshi, S. Suzuki, S. Y. Suzuki, F. Takasaki, N. Tamura, M. Tanaka, Y. Teramoto, X. C. Tian, T. Tsuboyama, T. Tsukamoto, S. Uehara, T. Uglov, K. Ueno, S. Uno, P. Urquijo, Y. Ushiroda, G. Varner, K. E. Varvell, S. Villa, C. C. Wang, C. H. Wang, M. Z. Wang, Y. Watanabe, Q. L. Xie, B. D. Yabsley, A. Yamaguchi, Y. Yamashita, M. Yamauchi, Heyoung Yang, J. Zhang, L. M. Zhang, Z. P. Zhang, V. Zhilich, D. Žontar

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Abstract

We present new measurements of CP-violation parameters in B0K0, K+K-KS0, f0(980)KS0, η′KS0, ωKS0, and KS0π0 decays based on a sample of 275×106 BB̄ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB energy-asymmetric e+e- collider. One neutral B meson is fully reconstructed in one of the specified decay channels, and the flavor of the accompanying B meson is identified from its decay products. CP-violation parameters for each of the decay modes are obtained from the asymmetries in the distributions of the proper-time intervals between the two B decays. The combined result for the B0K0, K+K-KS0, f0(980)KS0, η′KS0, ωKS0, KS0π0, and previously reported KS0KS0KS0 decays differs from the SM expectation by 2.4 standard deviations.

Original languageEnglish
Article number012004
Pages (from-to)1-15
Number of pages15
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume72
Issue number1
DOIs
Publication statusPublished - 2005 Jul 1

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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    Chen, K. F., Fang, F., Garmash, A., Hara, K., Hazumi, M., Higuchi, T., Kakuno, H., Kusaka, A., Shibata, T., Tajima, O., Trabelsi, K., Ziegler, T., Abe, K., Abe, K., Aihara, H., Asano, Y., Aushev, T., Bahinipati, S., Bakich, A. M., ... Žontar, D. (2005). Time-dependent CP-violating asymmetries in b→sq q transitions. Physical Review D - Particles, Fields, Gravitation and Cosmology, 72(1), 1-15. [012004]. https://doi.org/10.1103/PhysRevD.72.012004