Details

Autor(en) / Beteiligte

• Bhardwaj, V
• Miyabayashi, K
• Adachi, I
• Aziz, T
• Bakich, A M
• Bischofberger, M
• Browder, T E
• Chen, A
• Cheon, B G
• Chilikin, K
• Chistov, R
• Cinabro, D
• Doležal, Z
• Drásal, Z
• Dutta, D
• Dutta, K
• Eidelman, S
• Epifanov, D
• Ferber, T
• Gaur, V
• Gabyshev, N
• Gillard, R
• Goh, Y M
• Hara, T
• Horii, Y
• Hoshi, Y
• Hou, W-S
• Hsiung, Y B
• Iijima, T
• Inami, K
• Ishikawa, A
• Julius, T
• Kah, D H
• Kato, E
• Kim, J H
• Kim, K T
• Kim, M J
• Kim, Y J
• Kinoshita, K
• Klucar, J
• Ko, B R
• Kodyš, P
• Korpar, S
• Križan, P
• Kumita, T
• Kuzmin, A
• Kwon, Y-J
• Lee, S-H
• Li, Y
• Liventsev, D
• Miyata, H
• Mizuk, R
• Moll, A
• Mussa, R
• Nakano, E
• Nayak, M
• Nisar, N K
• Nishida, S
• Olsen, S L
• Park, H K
• Ritter, M
• Rostomyan, A
• Sakai, K
• Sakai, Y
• Sandilya, S
• Sanuki, T
• Savinov, V
• Schneider, O
• Schnell, G
• Schwanda, C
• Semmler, D
• Seon, O
• Sevior, M E
• Shapkin, M
• Shiu, J-G
• Smerkol, P
• Sokolov, A
• Solovieva, E
• Steder, M
• Sumiyoshi, T
• Tanida, K
• Tatishvili, G
• Teramoto, Y
• Tsuboyama, T
• Uglov, T
• Urquijo, P
• Vahsen, S E
• Van Hulse, C
• Vanhoefer, P
• Varvell, K E
• Wang, C H
• Wang, M-Z
• Wang, P
• Watanabe, M
• Watanabe, Y
• Yabsley, B D
• Yamashita, Y
• Yuan, C Z
• Zhang, Z P
• Zupanc, A

Titel

Evidence of a new narrow resonance decaying to χ(c1)γ in B→χ(c1)γK

Ist Teil von

• Physical review letters, 2013-07, Vol.111 (3), p.032001-032001

Ort / Verlag

United States

Erscheinungsjahr

2013

Quelle

PROLA - Physical Review Online Archive

Beschreibungen/Notizen

• We report measurements of B→χ(c1)γK and χ(c2)γK decays using 772×10(6) BB[over ¯] events collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. Evidence of a new resonance in the χ(c1)γ final state is found with a statistical significance of 3.8σ. This state has a mass of 3823.1±1.8(stat)±0.7(syst) MeV/c(2), a value that is consistent with theoretical expectations for the previously unseen 1(3)D(2) cc[over ¯] meson. We find no other narrow resonance and set upper limits on the branching fractions of the X(3872)→χ(c1)γ and χ(c2)γ decays.