A MEASUREMENT OF J/PSI DECAY WIDTHS

被引：41
作者：
BAI, JZ
CHEN, GP
CHEN, HF
CHEN, SJ
CHEN, SM
CHEN, Y
CHEN, YB
CHEN, YQ
CHENG, BS
CHENG, ZD
CUI, HC
CUI, XZ
DING, HL
DING, WY
DU, ZZ
FAN, XL
FANG, J
FANG, WZ
GAO, CS
GAO, ML
GAO, SQ
GAO, WX
GU, JH
GU, SD
GU, WX
GU, YF
GUO, YN
GUO, YY
HAN, SW
HAN, Y
HE, J
HE, KR
HE, M
HU, GY
HU, HP
HU, T
HU, XQ
HUANG, DQ
HUANG, YZ
JIANG, CH
JIN, S
JIN, Y
KANG, SH
KE, ZJ
LAI, YF
LAN, HB
LANG, PF
LI, F
LI, J
LI, PQ
机构：
[1] UNIV SCI & TECHNOL CHINA,HEFEI 230026,PEOPLES R CHINA
[2] SHANDONG UNIV,JINAN 250100,PEOPLES R CHINA
来源：
PHYSICS LETTERS B | 1995年 / 355卷 / 1-2期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1016/0370-2693(95)00712-T
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The cross sections for e(+)e(-) --> hadrons, e(+)e(-), mu(+)mu(-) have been measured in the vicinity of the J/psi resonance using the BES detector operated at BEPC. The partial widths for J/psi, to hadrons, electrons, muons and the total width have been determined to be Gamma(h) = 74.1 +/- 8.1 keV, Gamma(e) = 5.14 +/- 0.39 keV, Gamma(mu) = 5.13 +/- 0.52 keV, and Gamma = 84.4 +/- 8.9 keV, respectively.
引用
收藏
页码：374 / 380
页数：7
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