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Improved measurements of branching fractions and CP asymmetries in B -> eta h decaysopen access
- Authors
- Chang, P.; Abe, K.; Adachi, I.; Aihara, H.; Anipko, D.; Bakich, A. M.; Barberio, E.; Bay, A.; Bitenc, U.; Cheon, Byung Gu; Bizjak, I.; Bondar, A.; Bozek, A.; Bracko, M.; Browder, T. E.; Chao, Y.; Chen, A.; Chen, K.-F.; Chen, W. T.; Chistov, R.; Choi, S.-K.; Choi, Y.; Choi, Y. K.; Cole, S.; Dalseno, J.; Dash, M.; Dragic, J.; Eidelman, S.; Fratina, S.; Gabyshev, N.; Go, A.; Gorisek, A.; Ha, H.; Haba, J.; Hara, K.; Hayashii, H.; Hazumi, M.; Heffernan, D.; Hokuue, T.; Hoshi, Y.; Hou, S.; Hou, W.-S.; Iijima, T.; Inami, K.; Ishikawa, A.; Ishino, H.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Kaji, H.; Kang, J. H.; Kataoka, S. U.; Kawai, H.; Kawasaki, T.; Kichimi, H.; Kim, H. J.; Kim, Y. J.; Kinoshita, K.; Korpar, S.; Krokovny, P.; Kumar, R.; Kuo, C. C.; Kuzmin, A.; Kwon, Y.-J.; Lee, M. J.; Lee, S. E.; Lesiak, T.; Lin, S.-W.; Mandl, F.; Matsumoto, T.; McOnie, S.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Moloney, G. R.; Mori, T.; Nagasaka, Y.; Nakao, M.; Nishida, S.; Nitoh, O.; Ogawa, S.; Ohshima, T.; Okuno, S.; Onuki, Y.; Ozaki, H.; Pakhlov, P.; Pakhlova, G.; Park, H.; Peak, L. S.; Pestotnik, R.; Piilonen, L. E.; Sakai, Y.; Satoyama, N.; Schietinger, T.; Schneider, O.; Schuemann, J.; Schwanda, C.; Schwartz, A. J.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Shibuya, H.; Shwartz, B.; Singh, J. B.; Somov, A.; Soni, N.; Stanic, S.; Staric, M.; Stoeck, H.; Sumiyoshi, T.; Takasaki, F.; Tanaka, M.; Taylor, G. N.; Teramoto, Y.; Tian, X. C.; Tikhomirov, I.; Trabelsi, K.; Tsuboyama, T.; Tsukamoto, T.; Uehara, S.; Uglov, T.; Ueno, K.; Unno, Y.; Uno, S.; Usov, Y.; Varner, G.; Varvell, K. E.; Villa, S.; Wang, C. C.; Wang, C. H.; Wang, M.-Z.; Watanabe, M.; Watanabe, Y.; Wedd, R.; Wicht, J.; Won, E.; Yamaguchi, A.; Yamashita, Y.; Yamauchi, M.; Zhang, C. C.; Zhang, Z. P.; Zhilich, V.; Zupanc, A.
- Issue Date
- Apr-2007
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW D, v.75, no.7, pp.1 - 7
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW D
- Volume
- 75
- Number
- 7
- Start Page
- 1
- End Page
- 7
- ISSN
- 1550-7998
- Abstract
- We report improved measurements of B decays with an eta meson in the final state using 492 fb(-1) of data collected by the Belle detector at the KEKB e(+)e(-) collider. We observe the decays B-+/-->eta pi(+/-) and B-+/-->eta K-+/- and measure the branching fractions B(B-+/-->eta pi(+/-))=(4.2 +/- 0.4(stat)+/- 0.2(sys))x10(-6) and B(B-+/-->eta K-+/-)=(1.9 +/- 0.3(stat)(-0.1)(+0.2)(sys))x10(-6). The corresponding CP-violating asymmetries are measured to be -0.23 +/- 0.09(stat)+/- 0.02(sys) for eta pi(+/-) and -0.39 +/- 0.16(stat)+/- 0.03(sys) for eta K-+/-. We also search for B-0 ->eta K-0 decays and set an upper limit of 1.9x10(-6) at the 90% confidence level.
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Collections - 서울 자연과학대학 > 서울 물리학과 > 1. Journal Articles
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Related Researcher
- Cheon, Byung Gu
- COLLEGE OF NATURAL SCIENCES (DEPARTMENT OF PHYSICS)