Study of the hadronic decays of [chi][sub c] states

Journal Article · Fri Oct 01 00:00:00 EDT 1999 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.60.072001· OSTI ID:6078062

Bai, J Z; Bian, J G; Chen, G P; Chen, J C; Chen, Y; Chen, Y B; Chen, Y Q; Cheng, B S; Cui, X Z; Ding, H L; Dong, L Y; Du, Z Z; Gao, C S; Gao, M L; Gao, S Q; Gu, J H; Gu, S D; Gu, W X; Gu, Y F; Guo, Y N ; Han, S W; Han, Y; He, J; He, J T; He, K L; Hu, G Y; Hu, H M; Hu, J L; Hu, Q H; Hu, T; Hu, X Q; Huang, Y Z; Jiang, C H; Jin, Y; Ju, X; Ke, Z J; Lai, Y F; Lang, P F; Li, C G; Li, D; Li, H B; Li, J; Li, J C; Li, P Q; Li, R B; Li, W; Li, W G; Li, X H; Li, X N; Liu, H M; Liu, J; Liu, R G; Liu, Y; Lu, F; Lu, J G; Luo, X L; Ma, E C; Ma, J M; Mao, H S; Mao, Z P; Meng, X C; Nie, J; Qi, N D; Qi, X R; Qiu, J F; Qu, Y H; Que, Y K; Rong, G; Shao, Y Y; Shen, B W; Shen, D L; Shen, H; Shen, X Y; Sheng, H Y; Shi, H Z; Song, X F; Sun, F; Sun, H S; Sun, Y; Sun, Y Z; Tang, S Q; Tong, G L; Wang, F; Wang, L S; Wang, L Z; Wang, M; Wang, P; Wang, P L; Wang, S M; Wang, T J; Wang, Y Y; Wei, C L; Wu, Y G; Xi, D M; Xia, X

Hadronic decays of the [ital P]-wave spin-triplet charmonium states [chi][sub cJ](J=0,1,2) are studied using a sample of [psi](2S) decays collected by the BES detector operating at the BEPC storage ring. Branching fractions for the decays [chi][sub c1][r arrow]K[sub S][sup 0]K[sup +][pi][sup [minus]]+c.c., [chi][sub c0][r arrow]K[sub S][sup 0]K[sub S][sup 0], [chi][sub c2][r arrow]K[sub S][sup 0]K[sub S][sup 0], [chi][sub c0][r arrow][phi][phi], [chi][sub c2][r arrow][phi][phi] and [chi][sub cJ][r arrow]K[sup +]K[sup [minus]]K[sup +]K[sup [minus]] are measured for the first time, and those for [chi][sub cJ][r arrow][pi][sup +][pi][sup [minus]][pi][sup +][pi][sup [minus]], [chi][sub cJ][r arrow][pi][sup +][pi][sup [minus]]K[sup +]K[sup [minus]], [chi][sub cJ][r arrow][pi][sup +][pi][sup [minus]]p[bar p] and [chi][sub cJ][r arrow]3([pi][sup +][pi][sup [minus]]) are measured with improved precision. In addition, we determine the masses of the [chi][sub c0] and [eta][sub c] to be M[sub [chi][sub c0]]=3414.1[plus minus]0.6(stat)[plus minus]0.8(syst) MeV and M[sub [eta][sub c]]=2975.8[plus minus]3.9(stat)[plus minus]1.2(syst) MeV. [copyright] [ital 1999] [ital The American Physical Society]

• OSTI ID: 6078062
• Journal Information: Physical Review, D, Vol. 60:7; ISSN 0556-2821
• Country of Publication: United States
• Language: English

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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