Details

Autor(en) / Beteiligte

• Trabelsi, K
• Olsen, S L
• Adachi, I
• Adamczyk, K
• Asner, D M
• Aulchenko, V
• Bakich, A M
• Barberio, E
• Belous, K
• Bhuyan, B
• Bischofberger, M
• Bondar, A
• Brodzicka, J
• Chen, A
• Chen, P
• Cheon, B G
• Cho, K
• Choi, Y
• Dalseno, J
• Doležal, Z
• Eidelman, S
• Gabyshev, N
• Golob, B
• Horii, Y
• Hou, W-S
• Hsiung, Y B
• Hyun, H J
• Iijima, T
• Inami, K
• Iwabuchi, M
• Iwasaki, Y
• Iwashita, T
• Joshi, N J
• Julius, T
• Kawasaki, T
• Kiesling, C
• Kim, H O
• Kim, J B
• Kim, M J
• Kim, S K
• Kim, Y J
• Ko, B R
• Kobayashi, N
• Korpar, S
• Kumita, T
• Kuzmin, A
• Kwon, Y-J
• Li, Y
• Lim, C-L
• Liventsev, D
• Louvot, R
• McOnie, S
• Miyabayashi, K
• Miyata, H
• Mizuk, R
• Mohanty, G B
• Mussa, R
• Nakano, E
• Nakao, M
• Nakazawa, H
• Ng, C
• Nishida, S
• Nitoh, O
• Nozaki, T
• Ohshima, T
• Pakhlova, G
• Park, H K
• Pestotnik, R
• Piilonen, L E
• Sahoo, H
• Sakai, Y
• Schneider, O
• Seon, O
• Shapkin, M
• Shebalin, V
• Shibata, T-A
• Shiu, J-G
• Shwartz, B
• Smerkol, P
• Stanič, S
• Starič, M
• 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, Z P
• Zhilich, V
• Zhulanov, V

Titel

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

Ist Teil von

• Physical review letters, 2011-08, Vol.107 (9), p.091803-091803

Ort / Verlag

United States: American Physical Society

Erscheinungsjahr

2011

Link zum Volltext

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• 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.