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Observation of X(3872) -> J/psi gamma and Search for X(3872) -> psi 'gamma in B Decaysopen access
- Authors
- Bhardwaj, V.; Trabelsi, K.; Singh, J. B.; Choi, S. -K.; Olsen, S. L.; Adachi, I.; Adamczyk, K.; Asner, D. M.; Aulchenko, V.; Aushev, T.; Aziz, T.; Bakich, A. M.; Barberio, E.; Belous, K.; Bhuyan, B.; Bischofberger, M.; Bondar, A.; Bracko, M.; Brodzicka, J.; Browder, T. E.; Chen, A.; Chen, P.; Cheon, Byung Gu; Cho, K.; Choi, Y.; Dalseno, J.; Dolezal, Z.; Eidelman, S.; Epifanov, D.; Gaur, V.; Gabyshev, N.; Golob, B.; Haba, J.; Hayasaka, K.; Hayashii, H.; Horii, Y.; Hoshi, Y.; Hou, W. -S.; Hsiung, Y. B.; Hyun, H. J.; Iijima, T.; Inami, K.; Ishikawa, A.; Iwabuchi, M.; Iwasaki, Y.; Iwashita, T.; Joshi, N. J.; Julius, T.; Kang, J. H.; Kawasaki, T.; Kiesling, C.; Kim, H. O.; Kim, J. B.; Kim, J. H.; Kim, K. T.; Kim, M. J.; Kim, S. K.; Kim, Y. J.; Kinoshita, K.; Ko, B. R.; Kobayashi, N.; Korpar, S.; Krizan, P.; Kumar, R.; Kumita, T.; Kuzmin, A.; Kwon, Y. -J.; Lange, J. S.; Lee, M. J.; Lee, S. -H.; Li, Y.; Libby, J.; Lim, C. -L.; Liventsev, D.; Louvot, R.; Matvienko, D.; McOnie, S.; Miyabayashi, K.; Miyata, H.; Miyazaki, Y.; Mizuk, R.; Mohanty, G. B.; Mussa, R.; Nakano, E.; Nakao, M.; Nakazawa, H.; Natkaniec, Z.; Ng, C.; Nishida, S.; Nitoh, O.; Nozaki, T.; Ohshima, T.; Okuno, S.; Onuki, Y.; Pakhlova, G.; Park, C. W.; Park, H. K.; Pestotnik, R.; Petric, M.; Piilonen, L. E.; Roehrken, M.; Sahoo, H.; Sakai, K.; Sakai, Y.; Sanuki, T.; Schneider, O.; Schwanda, C.; Seon, O.; Shapkin, M.; Shebalin, V.; Shibata, T. -A.; Shiu, J. -G.; Shwartz, B.; Smerkol, P.; Sohn, Y. -S.; Sokolov, A.; Solovieva, E.; Stanic, S.; Staric, M.; Sumiyoshi, T.; Tatishvili, G.; Teramoto, Y.; Uchida, M.; Uehara, S.; Uglov, T.; Unno, Y.; Uno, S.; Usov, Y.; Varner, G.; Vossen, A.; Wang, X. L.; Watanabe, M.; Watanabe, Y.; Williams, K. M.; Yabsley, B. D.; Yamashita, Y.; Yuan, C. Z.; Zhang, C. C.; Zhang, Z. P.; Zhilich, V.; Zhou, P.; Zhulanov, V.; Zupanc, A.
- Issue Date
- Aug-2011
- Publisher
- AMER PHYSICAL SOC
- Citation
- PHYSICAL REVIEW LETTERS, v.107, no.9, pp.1 - 6
- Indexed
- SCIE
SCOPUS
- Journal Title
- PHYSICAL REVIEW LETTERS
- Volume
- 107
- Number
- 9
- Start Page
- 1
- End Page
- 6
- ISSN
- 0031-9007
- Abstract
- We report a study of B -> (J/psi gamma)K and B -> (psi'gamma)K decay modes using 772 X 10(6) B (B) over bar events collected at the Y(4S) resonance with the Belle detector at the KEKB energy-asymmetric e(+)e(-) collider. We observe X(3872) -> J/psi gamma and report the first evidence for chi(c2) -> J/psi gamma in B -> (X-c (c) over bar gamma)K decays, while in a search for X(3872) -> psi'gamma no significant signal is found. We measure the branching fractions, B(B-+/- -> X(3872)K-+/-)B(X(3872) -> J/psi gamma) = (1.78(-0.44)(+0.48) +/- 0.12) X 10(-6), B(B-+/- -> chi K-c2(+/-)) = (1.11(-0.34)(+0.36) +/- 0.09) X 10(-5), B(B+ -> X(3872)K+)B(X(3872) -> psi'gamma) < 3.45 X 10(-6) (upper limit at 90% C. L.), and also provide upper limits for other searches.
- Appears in
Collections - 서울 자연과학대학 > 서울 물리학과 > 1. Journal Articles
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Related Researcher
- Cheon, Byung Gu
- COLLEGE OF NATURAL SCIENCES (DEPARTMENT OF PHYSICS)