Observation of X(3872)→J/ψγ and search for X(3872)→ψ'γ in B decays.

Published

Journal Article

We report a study of B→(J/ψγ)K and B→(ψ'γ)K decay modes using 772×10⁶ B ̅B events collected at the Υ(4S) resonance with the Belle detector at the KEKB energy-asymmetric e(+)e(-) collider. We observe X(3872)→J/ψγ and report the first evidence for χ(c2)→J/ψγ in B→(X_{c ̅cγ)K decays, while in a search for X(3872)→ψ'γ no significant signal is found. We measure the branching fractions, B(B(±)→X(3872)K(±))B(X(3872)→J/ψγ)=(1.78(-0.44)(+0.48)±0.12)×10(-6), B(B(±)→χ(c2)K(±))=(1.11(-0.34)(+0.36)±0.09)×10(-5), B(B(±)→X(3872)K(±))B(X(3872)→ψ'γ)<3.45×10⁶ (upper limit at 90% C.L.), and also provide upper limits for other searches.

Full Text

Duke Authors

Cited Authors

  • Bhardwaj, V; Trabelsi, K; Singh, JB; Choi, S-K; Olsen, SL; Adachi, I; Adamczyk, K; Asner, DM; Aulchenko, V; Aushev, T; Aziz, T; Bakich, AM; Barberio, E; Belous, K; Bhuyan, B; Bischofberger, M; Bondar, A; Bračko, M; Brodzicka, J; Browder, TE; Chen, A; Chen, P; Cheon, BG; Cho, K; Choi, Y; Dalseno, J; Doležal, 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, YB; Hyun, HJ; Iijima, T; Inami, K; Ishikawa, A; Iwabuchi, M; Iwasaki, Y; Iwashita, T; Joshi, NJ; Julius, T; Kang, JH; Kawasaki, T; Kiesling, C; Kim, HO; Kim, JB; Kim, JH; Kim, KT; Kim, MJ; Kim, SK; Kim, YJ; Kinoshita, K; Ko, BR; Kobayashi, N; Korpar, S; Križan, P; Kumar, R; Kumita, T; Kuzmin, A; Kwon, Y-J; Lange, JS; Lee, MJ; 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, GB; 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, CW; Park, HK; Pestotnik, R; Petrič, M; Piilonen, LE; Röhrken, 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; Stanič, S; Starič, M; Sumiyoshi, T; Tatishvili, G; Teramoto, Y; Uchida, M; Uehara, S; Uglov, T; Unno, Y; Uno, S; Usov, Y; Varner, G; Vossen, A; Wang, XL; Watanabe, M; Watanabe, Y; Williams, KM; Yabsley, BD; Yamashita, Y; Yuan, CZ; Zhang, CC; Zhang, ZP; Zhilich, V; Zhou, P; Zhulanov, V; Zupanc, A; Belle Collaboration,

Published Date

  • August 26, 2011

Published In

Volume / Issue

  • 107 / 9

Start / End Page

  • 091803 -

PubMed ID

  • 21929226

Pubmed Central ID

  • 21929226

Electronic International Standard Serial Number (EISSN)

  • 1079-7114

International Standard Serial Number (ISSN)

  • 0031-9007

Digital Object Identifier (DOI)

  • 10.1103/physrevlett.107.091803

Language

  • eng