Partial wave analyses of J/ψ→γK+K- and γKS0KS0 -: art. no. 052003

被引：81

作者：

Bai, JZ

Ban, Y

Bian, JG

Bugg, DV

Cai, X

Chang, JF

Chen, HF

Chen, HS

Chen, HX

Chen, J

Chen, JC

Chen, YB

Chi, SP

Chu, YP

Cui, XZ

Dai, HL

Dai, YS

Dai, YM

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

Jiang, CH

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] Nankai Univ, Tianjin 300071, Peoples R China

[9] Nanjing Normal Univ, Nanjing 210097, Peoples R China

[10] Peking Univ, Beijing 100871, Peoples R China

[11] Queen Mary, London E1 4NS, England

[12] Shandong Univ, Jinan 250100, Peoples R China

[13] Shanghai Jiao Tong Univ, Shanghai 200030, Peoples R China

[14] Sichuan Univ, Chengdu 610064, Peoples R China

[15] Tsinghua Univ, Beijing 100084, Peoples R China

[16] Univ Hawaii, Honolulu, HI 96822 USA

[17] Univ Sci & Technol China, Hefei 230026, Peoples R China

[18] Wuhan Univ, Wuhan 430072, Peoples R China

[19] Zhejiang Univ, Hangzhou 310028, Peoples R China

来源：

PHYSICAL REVIEW D | 2003年 / 68卷 / 05期

关键词：

CENTRALLY PRODUCED K+K; PP INTERACTIONS; 450; GEV/C; RADIATIVE DECAYS; J/PSI; PSI;

D O I：

10.1103/PhysRevD.68.052003

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Results are presented on J/psi radiative decays to K+K- and (KSKS0)-K-0 based on a sample of 58M J/psi events taken with the BES II detector. A partial wave analysis is carried out using the relativistic covariant tensor amplitude method in the 1-2 GeV mass range. There is conspicuous production due to the f(2)(')(1525) and f(0)(1710). The latter peaks at a mass of 1740+/-4(-25)(+10) MeV with a width of 166(-8)(-10)(+5)(+15) MeV. Spin 0 is strongly preferred over spin 2. For the f(2)(')(1525), the helicity amplitude ratios are determined to be x(2)=1.00+/-0.28(-0.36)(+1.06) and y(2)=0.44+/-0.08(-0.56)(+0.10).

引用

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