Observation of the decay ψ (2S)→K*(892)(K)over-bar + c.c

被引：28

作者：

Ablikim, M

Bai, JZ

Ban, Y

Bian, JG

Cai, X

Chang, JF

Chen, HF

Chen, HS

Chen, HX

Chen, JC

Chen, J

Chen, F

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

Gao, CS

Gao, YN

Gong, MY

Gong, WX

Gu, SD

Guo, YN

Guo, YQ

Guo, ZJ

Harris, FA

He, KL

He, M

He, X

Heng, YK

Hu, HM

Hu, T

Huang, GS

Huang, L

Huang, XP

Ji, XB

Jia, QY

Jiang, CH

Jiang, XS

Jin, DP

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] Zhejiang Univ, Hangzhou 310028, Peoples R China

来源：

PHYSICS LETTERS B | 2005年 / 614卷 / 1-2期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1016/j.physletb.2005.03.071

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using 14 million psi(2S) events collected with the BESII detector, branching fractions of psi(2S) -> K-*(892)+K- +c.c. and K-*(892)(0)(K) over bar (0) + c.c. are determined to be: B(psi(2S) -> K-*(892)K-+(-) + c.c.) = (2.9(-1.7)(+1.3) +/- 0.4) x 10(-5) and B(psi (2S) K-*(892)(0)(K) over bar (0)+ c.c.) = (13.3(-2.7)(+2.4) +/- 1.7) x 10(-5). The results confirm the violation of the "12% rule" for these two decay channels. A large isospin violation between the charged and neutral modes is observed. (c) 2005 Published by Elsevier B.V.

引用

页码：37 / 43

页数：7