Search for the pentaquark state in ψ(2S) and J/ψ decays to KS0pK-$$(n)over-bar and KS0$$(p)over-barK+n -: art. no. 012004

被引：238
|
作者：
Bai, JZ [1 ]
Ban, Y
Bian, JG
Cai, X
Chang, JF
Chen, HF
Chen, HS
Chen, HX
Chen, J
Chen, JC
Chen, J
Chen, ML
Chen, YB
Chi, SP
Chu, YP
Cui, XZ
Dai, HL
Dai, YS
Deng, ZY
Dong, LY
Du, SX
Du, ZZ
Fang, J
Fang, SS
Fu, CD
Fu, HY
Fu, LP
Gao, CS
Gao, ML
Gao, YN
Gong, MY
Gong, WX
Gu, SD
Guo, YN
Guo, YQ
Guo, ZJ
Han, SW
Harris, FA
He, J
He, KL
He, M
He, X
Heng, YK
Hu, HM
Hu, T
Huang, GS
Huang, L
Huang, XP
Ji, XB
Jia, QY
机构：
[1] Inst High Energy Phys, Beijing 100039, Peoples R China
[2] China Ctr Adv Sci & Technol, Beijing 100080, Peoples R China
[3] Guangxi Normal Univ, Guilin 541004, Peoples R China
[4] Henan Normal Univ, Xinxiang 453002, Peoples R China
[5] Huazhong Normal Univ, Wuhan 430079, Peoples R China
[6] Hunan Univ, Changsha 410082, Peoples R China
[7] Liaoning Univ, Shenyang 110036, Peoples R China
[8] Nanjing Normal Univ, Nanjing 210097, Peoples R China
[9] Nankai Univ, Tianjin 300071, Peoples R China
[10] Peking Univ, Beijing 100871, Peoples R China
[11] Shandong Univ, Jinan 250100, Peoples R China
[12] Shanghai Jiao Tong Univ, Shanghai 200030, Peoples R China
[13] Sichuan Univ, Chengdu 610064, Peoples R China
[14] Tsinghua Univ, Beijing 100084, Peoples R China
[15] Univ Hawaii, Honolulu, HI 96822 USA
[16] Univ Sci & Technol China, Hefei 230026, Peoples R China
[17] Wuhan Univ, Wuhan 430072, Peoples R China
[18] Zhejiang Univ, Hangzhou 310028, Peoples R China
来源：
PHYSICAL REVIEW D | 2004年 / 70卷 / 01期
关键词：
D O I：
10.1103/PhysRevD.70.012004
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Results are presented on psi(2S) and J/psi hadronic decays to K(S)(0)pK(-) (n) over bar and K-S(0)(p) over barK(+)n final states from data samples of 14 million psi(2S) and 58 million J/psi events accumulated at the BES II detector. No Theta(1540) signal, the pentaquark candidate, is observed, and upper limits are set for B(psi(2S)-->Theta(Theta) over bar -->K(S)(0)pK(-)(n) over bar +K-S(0)(p) over barK(+)n)<0.84x10(-5) and B(J/psi-->Theta(Theta) over bar -->K(S)(0)pK(-)(n) over bar +K-S(0)(p) over barK(+)n)<1.1x10(-5) at the 90% confidence level. For single Theta(1540) production, the upper limits determined by our analysis are also on the order of 10(-5) in both psi(2S) and J/psi decays.
引用
收藏
页码：012004 / 1
页数：6
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