Search for direct CP violation in B -> K pi decays - art. no. 071101

Authors
Abe, K Abe, K Abe, R Adachi, I Ahn, BS Aihara, H Akatsu, M Asano, Y Aso, T Aulchenko, V Aushev, T Bakich, AM Banas, E Behari, S Behera, PK Bondar, A Bozek, A Browder, TE Casey, BCK Chang, P Chao, Y Chen, KF Cheon, BG Chistov, R Choi, SK Choi, Y Dong, LY Dragic, J Drutskoy, A Eidelman, S Enomoto, R Fang, F Fujii, H Fukunaga, C Fukushima, M Garmash, A Gordon, A Gotow, K Guo, R Haba, J Hamasaki, H Hanagaki, K Handa, F Hara, K Hara, T Hastings, NC Hayashii, H Hazumi, M Heenan, EM Higuchi, I Higuchi, T Hirano, H Hojo, T Hokuue, T Hoshi, Y Hou, SR Hou, WS Hsu, SC Huang, HC Igarashi, Y Iijima, T Ikeda, H Inami, K Ishikawa, A Ishino, H Itoh, R Iwai, G Iwasaki, H Iwasaki, Y Jackson, DJ Jalocha, P Jang, HK Jones, M Kang, JH Kang, JS Kapusta, P Katayama, N Kawai, H Kawakami, Y Kawamura, N Kawasaki, T Kichimi, H Kim, DW Kim, HJ Kim, HJ Kim, HW Kim, SK Kim, TH Kinoshita, K Konishi, H Krokovny, P Kulasiri, R Kumar, S Kurihara, E Kuzmin, A Kwon, YJ Lange, JS Lee, SH Liventsev, D Lu, RS Marlow, D Matsubara, T Matsui, S Matsumoto, S Matsumoto, T Mikami, Y Miyabayashi, K Miyake, H Miyata, H Moloney, GR Mori, T Murakami, A Nagamine, T Nagasaka, Y Nagashima, Y Nakano, E Nakao, M Nam, JW Narita, S Natkaniec, Z Neichi, K Nishida, S Noguchi, S Nozaki, T Ogawa, S Ohshima, T Okabe, T Okuno, S Ozaki, H Pakhlov, P Palka, H Park, CS Park, CW Park, H Peak, LS Peters, M Piilonen, LE Prebys, E Root, N Rozanska, M Rybicki, K Ryuko, J Sagawa, H Sakai, Y Sakamoto, H Satapathy, M Satpathy, A Schrenk, S Semenov, S Senyo, K Sevior, ME Shibuya, H Shwartz, B Stanic, S Sugiyama, A Sumisawa, K Sumiyoshi, T Suzuki, JI Suzuki, K Suzuki, S Suzuki, SY Swain, SK Takahashi, T Takasaki, F Takita, M Tamai, K Tamura, N Tanaka, J Tanaka, M Tanaka, Y Taylor, GN Teramoto, Y Tomoto, M Tomura, T Tovey, SN Trabelsi, K Tsuboyama, T Tsukamoto, T Uehara, S Ueno, K Unno, Y Uno, S Ushiroda, Y Varvell, KE Wang, CC Wang, CH Wang, JG Wang, MZ Watanabe, Y Won, E Yabsley, BD Yamada, Y Yamaga, M Yamaguchi, A Yamamoto, H Yamashita, Y Yamauchi, M Yanaka, S Yoshida, K Yusa, Y Yuta, H Zhang, J Zhao, HW Zheng, Y Zhilich, V Zontar, D
Citation
K. Abe et al., Search for direct CP violation in B -> K pi decays - art. no. 071101, PHYS REV D, 6407(7), 2001, pp. 1101
Citations number
17
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW D
ISSN journal
0556-2821 → ACNP
Volume
6407
Issue
7
Year of publication
2001
Database
ISI
SICI code
0556-2821(20011001)6407:7<1101:SFDCVI>2.0.ZU;2-J
Abstract
We search for direct CP violation in flavor specific B -->K pi decays by me asuring the rate asymmetry between charge conjugate modes. The search is pe rformed on a data sample of 11.1 x 10(6) B(B) over bar events recorded on t he Y(4S) resonance by the Belle experiment at KEKB. We measure 90% confiden ce intervals in the partial rate asymmetry A(CP) of - 0.25<A(CP)(K-<plus/mi nus> pi (+/-)) <0.37, - 0.40<A(CP)(K+/- pi (0))<0.36, and -0.53 <A(CP)(K(0) pi (+/-))<0.82. By combining the K-<plus/minus> pi (+/-) and K+/- pi (0) fi nal states, we conclude that -0.22 <A(CP)(K-<plus/minus>(pi (+/-) +pi (0))) <0.25 at the 90% confidence level.