Improved measurement of mixing-induced CP violation in the neutral B meson system

K. Abe, K. Abe, T. Abe, I. Adachi, H. Aihara, M. Akatsu, Y. Asano, T. Aso, V. Aulchenko, T. Aushev, A. M. Bakich, E. Banas, A. Bay, P. K. Behera, I. Bizjak, A. Bondar, A. Bozek, M. Bračko, J. Brodzicka, T. E. BrowderB. C.K. Casey, P. Chang, Y. Chao, K. Chen, B. G. Cheon, R. Chistov, Y. Choi, Y. K. Choi, M. Danilov, L. Y. Dong, A. Drutskoy, S. Eidelman, V. Eiges, Y. Enari, C. W. Everton, F. Fang, H. Fujii, C. Fukunaga, N. Gabyshev, A. Garmash, T. Gershon, B. Golob, K. Gotow, R. Guo, J. Haba, K. Hanagaki, F. Handa, K. Hara, T. Hara, Y. Harada, N. C. Hastings, H. Hayashii, M. Hazumi, E. M. Heenan, I. Higuchi, T. Higuchi, L. Hinz, T. Hojo, T. Hokuue, Y. Hoshi, W. Hou, H. Huang, T. Igaki, Y. Igarashi, T. Iijima, K. Inami, A. Ishikawa, H. Ishino, R. Itoh, H. Iwasaki, Y. Iwasaki, H. K. Jang, H. Kakuno, J. Kaneko, J. H. Kang, J. S. Kang, N. Katayama, H. Kawai, H. Kawai, Y. Kawakami, N. Kawamura, T. Kawasaki, H. Kichimi, D. W. Kim, Heejong Kim, H. J. Kim, H. O. Kim, Hyunwoo Kim, K. Kinoshita, S. Kobayashi, K. Korotushenko, S. Korpar, P. Križan, P. Krokovny, S. Kumar, A. Kuzmin, Y. Kwon, J. S. Lange, G. Leder, S. H. Lee, J. Li, A. Limosani, J. MacNaughton, G. Majumder, F. Mandl, D. Marlow, S. Matsumoto, T. Matsumoto, W. Mitaroff, K. Miyabayashi, Y. Miyabayashi, H. Miyake, G. R. Moloney, T. Mori, A. Murakami, T. Nagamine, Y. Nagasaka, T. Nakadaira, E. Nakano, M. Nakao, H. Nakazawa, J. W. Nam, Z. Natkaniec, K. Neichi, S. Nishida, O. Nitoh, S. Noguchi, T. Nozaki, S. Ogawa, T. Ohshima, T. Okabe, S. L. Olsen, Y. Onuki, W. Ostrowicz, H. Ozaki, P. Pakhlov, H. Palka, C. W. Park, H. Park, K. S. Park, J. Perroud, L. E. Piilonen, F. J. Ronga, N. Root, M. Rozanska, K. Rybicki, H. Sagawa, S. Saitoh, Y. Sakai, H. Sakamoto, M. Satapathy, A. Satpathy, O. Schneider, S. Schrenk, C. Schwanda, S. Semenov, K. Senyo, R. Seuster, H. Shibuya, B. Shwartz, V. Sidorov, J. B. Singh, N. Soni, S. Stanič, A. Sugi, A. Sugiyama, K. Sumisawa, T. Sumiyoshi, K. Suzuki, S. Suzuki, S. Y. Suzuki, H. Tajima, T. Takahashi, F. Takasaki, K. Tamai, N. Tamura, J. Tanaka, M. Tanaka, G. N. Taylor, Y. Teramoto, S. Tokuda, T. Tomura, K. Trabelsi, W. Trischuk, T. Tsuboyama, T. Tsukamoto, S. Uehara, K. Ueno, Y. Unno, S. Uno, N. Uozaki, Y. Ushiroda, S. E. Vahsen, G. Varner, K. E. Varvell, C. C. Wang, C. H. Wang, J. G. Wang, M. Wang, Y. Watanabe, E. Won, B. D. Yabsley, Y. Yamada, A. Yamaguchi, H. Yamamoto, Y. Yamashita, Y. Yamashita, M. Yamauchi, H. Yanai, J. Yashima, P. Yeh, M. Yokoyama, Y. Yuan, Y. Yusa, H. Yuta, C. C. Zhang, J. Zhang, Z. P. Zhang, V. Zhilich, D. Žontar

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236 Citations (Scopus)

Abstract

We present an improved measurement of the standard model CP violation parameter [Formula Presented] (also known as [Formula Presented] based on a sample of [Formula Presented] [Formula Presented] pairs collected at the [Formula Presented] resonance with the Belle detector at the KEKB asymmetric-energy [Formula Presented] collider. One neutral B meson is reconstructed in a [Formula Presented] [Formula Presented] [Formula Presented] [Formula Presented] [Formula Presented] or [Formula Presented] CP-eigenstate decay channel and the flavor of the accompanying B meson is identified from its decay products. From the asymmetry in the distribution of the time interval between the two B meson decay points, we obtain [Formula Presented]

Original languageEnglish
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume66
Issue number7
DOIs
Publication statusPublished - 2002 Jan 1

ASJC Scopus subject areas

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

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    Abe, K., Abe, K., Abe, T., Adachi, I., Aihara, H., Akatsu, M., Asano, Y., Aso, T., Aulchenko, V., Aushev, T., Bakich, A. M., Banas, E., Bay, A., Behera, P. K., Bizjak, I., Bondar, A., Bozek, A., Bračko, M., Brodzicka, J., ... Žontar, D. (2002). Improved measurement of mixing-induced CP violation in the neutral B meson system. Physical Review D - Particles, Fields, Gravitation and Cosmology, 66(7). https://doi.org/10.1103/PhysRevD.66.071102