Phys. Rev. D
69,
111102(R)
(2004)
[6 pages]
Improved measurements of the branching fractions for B⃗Kπ, ππ, and KK̅ decays
Y. Chao et al. (Belle Collaboration)
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Y. Chao23, K. Suzuki7, Y. Unno2, K. Abe7, K. Abe39, T. Abe7, I. Adachi7, H. Aihara41, M. Akatsu20, Y. Asano46, T. Aso45, V. Aulchenko1, T. Aushev11, A. M. Bakich36, S. Banerjee37, I. Bizjak12, A. Bondar1, A. Bozek24, M. Bračko18,12, T. E. Browder6, P. Chang23, B. G. Cheon35, R. Chistov11, S.-K. Choi5, Y. Choi35, Y. K. Choi35, A. Chuvikov31, S. Cole36, M. Danilov11, M. Dash47, L. Y. Dong9, J. Dragic19, A. Drutskoy11, S. Eidelman1, V. Eiges11, N. Gabyshev7, A. Garmash31, T. Gershon7, B. Golob17,12, A. Gordon19, J. Haba7, T. Hara28, M. Hazumi7, I. Higuchi40, T. Hokuue20, Y. Hoshi39, W.-S. Hou23, Y. B. Hsiung23,*, H.-C. Huang23, T. Iijima20, K. Inami20, A. Ishikawa7, R. Itoh7, H. Iwasaki7, Y. Iwasaki7, J. H. Kang49, J. S. Kang14, P. Kapusta24, N. Katayama7, H. Kawai2, T. Kawasaki26, H. Kichimi7, H. J. Kim49, J. H. Kim35, K. Kinoshita3, S. Korpar18,12, P. Križan17,12, P. Krokovny1, A. Kuzmin1, Y.-J. Kwon49, J. S. Lange4,32, G. Leder10, S. H. Lee34, J. Li33, A. Limosani19, S.-W. Lin23, J. MacNaughton10, G. Majumder37, F. Mandl10, D. Marlow31, T. Matsumoto43, A. Matyja24, W. Mitaroff10, H. Miyake28, H. Miyata26, D. Mohapatra47, T. Mori42, T. Nagamine40, Y. Nagasaka8, T. Nakadaira41, E. Nakano27, M. Nakao7, H. Nakazawa7, Z. Natkaniec24, S. Nishida7, O. Nitoh44, S. Noguchi21, T. Nozaki7, S. Ogawa38, T. Ohshima20, S. Okuno13, S. L. Olsen6, W. Ostrowicz24, H. Ozaki7, P. Pakhlov11, H. Palka24, C. W. Park14, H. Park15, N. Parslow36, L. S. Peak36, L. E. Piilonen47, M. Rozanska24, H. Sagawa7, S. Saitoh7, Y. Sakai7, O. Schneider16, J. Schümann23, A. J. Schwartz3, S. Semenov11, M. E. Sevior19, H. Shibuya38, B. Shwartz1, V. Sidorov1, J. B. Singh29, N. Soni29, S. Stanič46,†, M. Starič12, K. Sumisawa28, T. Sumiyoshi43, S. Suzuki48, S. Y. Suzuki7, O. Tajima40, F. Takasaki7, N. Tamura26, M. Tanaka7, Y. Teramoto27, T. Tomura41, K. Trabelsi6, T. Tsuboyama7, T. Tsukamoto7, S. Uehara7, K. Ueno23, T. Uglov11, S. Uno7, G. Varner6, C. H. Wang22, J. G. Wang47, M.-Z. Wang23, M. Watanabe26, Y. Yamada7, A. Yamaguchi40, H. Yamamoto40, Y. Yamashita25, M. Yamauchi7, H. Yanai26, Heyoung Yang34, J. Ying30, Y. Yuan9, S. L. Zang9, J. Zhang7, Z. P. Zhang33, V. Zhilich1, and D. Žontar17,12 (Belle Collaboration)
1Budker Institute of Nuclear Physics, Novosibirsk
2Chiba University, Chiba
3University of Cincinnati, Cincinnati, Ohio 45221
4University of Frankfurt, Frankfurt
5Gyeongsang National University, Chinju
6University of Hawaii, Honolulu, Hawaii 96822
7High Energy Accelerator Research Organization (KEK), Tsukuba
8Hiroshima Institute of Technology, Hiroshima
9Institute of High Energy Physics, Chinese Academy of Sciences, Beijing
10Institute of High Energy Physics, Vienna
11Institute for Theoretical and Experimental Physics, Moscow
12J. Stefan Institute, Ljubljana
13Kanagawa University, Yokohama
14Korea University, Seoul
15Kyungpook National University, Taegu
16Swiss Federal Institute of Technology of Lausanne, EPFL, Lausanne
17University of Ljubljana, Ljubljana
18University of Maribor, Maribor
19University of Melbourne, Victoria
20Nagoya University, Nagoya
21Nara Women’s University, Nara
22National Lien-Ho Institute of Technology, Miao Li
23Department of Physics, National Taiwan University, Taipei
24H. Niewodniczanski Institute of Nuclear Physics, Krakow
25Nihon Dental College, Niigata
26Niigata University, Niigata
27Osaka City University, Osaka
28Osaka University, Osaka
29Panjab University, Chandigarh
30Peking University, Beijing
31Princeton University, Princeton, New Jersey 08545
32RIKEN BNL Research Center, Upton, New York 11973
33University of Science and Technology of China, Hefei
34Seoul National University, Seoul
35Sungkyunkwan University, Suwon
36University of Sydney, Sydney NSW
37Tata Institute of Fundamental Research, Bombay
38Toho University, Funabushi
39Tohoku Gakuin University, Tagajo
40Tohoku University, Sendai
41Department of Physics, University of Tokyo, Tokyo
42Tokyo Institute of Technology, Tokyo
43Tokyo Metropolitan University, Tokyo
44Tokyo University of Agriculture and Technology, Tokyo
45Toyama National College of Maritime Technology, Toyama
46University of Tsukuba, Tsukuba
47Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061
48Yokkaichi University, Yokkaichi
49Yonsei University, Seoul
Received 28 November 2003; published 2 June 2004
We report improved measurements of branching fractions for B⃗Kπ, π+π-, π+π0, and KK̅ decays based on a data sample of 85.0 million BB̅ pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB e+e- storage ring. This data sample is almost three times larger than the sample previously used. We observe clear signals for B⃗Kπ, π+π-, and π+π0 decays and set upper limits on B⃗KK̅ decays. The results can be used to give model-dependent constraints on the CKM angle φ3, as well as limits on the hadronic uncertainty in the time-dependent analysis of the angle φ2.
© 2004 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevD.69.111102
DOI:
10.1103/PhysRevD.69.111102
PACS:
13.25.Hw, 11.30.Er, 12.15.Hh, 14.40.Nd
*On leave from Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA. †On leave from Nova Gorica Polytechnic, Nova Gorica.
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