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Study of the decay mechanism for B+ -> p(p)over-barK(+) and B+ -> p(p)over-bar pi(+)
- Authors
- Wei, J. -T.; Wang, M. -Z.; Adachi, I.; Aihara, H.; Aulchenko, V.; Aushev, T.; Bakich, A. M.; Balagura, V.; Barberio, E.; Bay, A.; Belous, K.; Bitenc, U.; Bondar, A.; Bozek, A.; Brako, M.; Browder, T. E.; Chang, P.; Chao, Y.; Chen, A.; Chen, K. -F.; Cheon, B. G.; Chiang, C. -C.; Cho, I. -S.; Choi, Y.; Choi, Y. K.; Cole, S.; Danilov, M.; Dash, M.; Drutskoy, A.; Eidelman, S.; Fratina, S.; Gabyshev, N.; Golob, B.; Hap, H.; Haba, J.; Hara, T.; Hayasaka, K.; Hayashii, H.; Hazumi, M.; Heffernan, D.; Hokuue, T.; Hoshi, Y.; Hsiung, Y. B.; Hyun, H. J.; Iijima, T.; Ikado, K.; Inami, K.; Ishikawa, A.; Itoh, R.; Iwasaki, M.; Iwasaki, Y.; Kah, D. H.; Kang, J. H.; Katayama, N.; Kawai, H.; Kawasaki, T.; Kichimi, H.; Kim, Y. J.; Kinoshita, K.; Korpar, S.; Krizan, P.; Krokovny, P.; Kumar, R.; Kuo, C. C.; Kuzmin, A.; Kwon, Y. -J.; Lee, J. S.; Lee, S. E.; Lesiak, T.; Lin, S. -W.; Liu, Y.; Liventsev, D.; Mandl, E.; Matsumoto, T.; Matyja, A.; McOnie, S.; Medvedeva, T.; Mitaroff, W.; Miyabayashi, K.; Miyake, H.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Nagasaka, Y.; Nakano, E.; Nakao, M.; Nishida, S.; Nitoh, O.; Ogawa, S.; Ohshima, T.; Okuno, S.; Olsen, S. L.; Ozaki, H.; Pakhlov, P.; Pakhlova, G.; Park, C. W.; Park, H.; Park, K. S.; Pestotnik, R.; Piilonen, L. E.; Sahoo, H.; Sakai, Y.; Schneider, O.; Schuemann, J.; Seidl, R.; Senyo, K.; Sevior, M. E.; Shapkin, M.; Shibuya, H.; Shiu, J. -G.; Singh, J. B.; Sokolov, A.; Somov, A.; Stanic, S.; Staric, M.; Sumiyoshi, T.; Tajima, O.; Takasaki, F.; Tamai, K.; Tanaka, M.; Taylor, G. N.; Teramoto, Y.; Tian, X. C.; Tikhomirov, I.; Tsuboyama, T.; Uehara, S.; Ueno, K.; Uglov, T.; Unno, Y.; Uno, S.; Urquijo, P.; Varner, G.; Varvell, K. E.; Vervink, K.; Villa, S.; Vinokurova, A.; Wang, C. C.; Wang, C. H.; Wang, P.; Watanabe, Y.; Wedd, R.; Won, E.; Yamaguchi, A.; Yamashita, Y.; Yamauchi, M.; Zhang, C. C.; Zhang, Z. P.; Zhilich, V.; Zupanc, A.
- Issue Date
- 17-Jan-2008
- Publisher
- ELSEVIER
- Citation
- PHYSICS LETTERS B, v.659, no.1-2, pp.80 - 86
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICS LETTERS B
- Volume
- 659
- Number
- 1-2
- Start Page
- 80
- End Page
- 86
- ISSN
- 0370-2693
- Abstract
- We study the characteristics of the low mass p (p) over bar enhancements near threshold in the three-body decays B+ -> p (p) over barK(+) and B+ -> p (p) over bar pi(+). We observe that the proton polar angle distributions in the p (p) over bar helicity frame in the two decays have the opposite polarity, and measure the forward-backward asymmetries as a function of the p mass for the p (p) over barK(+) mode. We also search for the intermediate two-body decays, B+ -> (p) over bar Delta(++) and B+ -> p (Delta) over bar (0), and set upper limits on their branching fractions. These results are obtained from a 414 fb(-1) data sample that contains 449 x 10(6) B (B) over bar events collected near the Gamma(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. (c) 2007 Elsevier B.V. All rights reserved.
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Related Researcher
- Won, Eun il
- College of Science (Department of Physics)