Observation of X(3872) -> J/psi gamma and Search for X(3872) -> psi 'gamma in B Decays

  • Bhardwaj, V.
  • Trabelsi, K.
  • Singh, J. B.
  • Choi, S. -K.
  • Olsen, S. L.
  • ... Cheon, Byung Gu
  • 외 137명
Citations

WEB OF SCIENCE

145
Citations

SCOPUS

177

초록

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.

키워드

B-decaysBelle detectorsBranching fractionsColliderDecay modeUpper limits
제목
Observation of X(3872) -> J/psi gamma and Search for X(3872) -> psi 'gamma in B Decays
저자
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 GuCho, 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.
DOI
10.1103/PhysRevLett.107.091803
발행일
2011-08
유형
Article
저널명
Physical Review Letters
107
9
페이지
1 ~ 6

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