-
Abstract:
Based on 4-prong events sample of J/ψ decay and the ψ′ data sample, a method is developed to determine J/ψ total number of two data sets which were taken from November 1999 to May 2001 at BESⅡ. The results are (27.00±1.48)×106 and (30.70±1.62)×106,respectively.
-
-
References
[1]
|
. DING HuiLang et al.HEP NP ,1992,16(9):1(in Chinese)(丁慧良等.高能物理与核物理,1992,16(9):1)2. BAI JingZhi et al. Nucl. Instr. Meth.,2001,A458:6273. YU ZhongQiang et al.Determination of Total Number of the Fourthset J ψ. BES internal report, 1993(in Chinese)(郁忠强等.第四批J ψ总数的估算.BES内部资料,1993)4. MA Ai-Min.IHEP ,CAS ,Ph.D .Thesis,1995(in Chinese)(马爱民.博士论文,中国科学院高能物理研究所,1995)5. WANG ZhiYong et al.HEP NP ,2001,25(2):89(in Chinese)(王至勇等.高能物理与核物理,2001,25(2):89)6. HUANG GuangShun et al.HEP NP ,2001,25(9):889(in Chinese)(黄光顺等.高能物理与核物理,2001,25(9):889)7. FU HongYu.Measurement of The Trigger Efficiency for the New J ψ Data.The 9th BES Annual Meeting, Dalian, June,20008. Particle Data Group. Euor.Phys.Jour,2000,C :479. WANG Meng.IHEP ,CAS ,M .S .Thesis,1996(in Chinese)(王萌.硕士论文,中国科学院高能物理研究所,1996)
|
-
[1] |
HOU Ren-Chang
, ZHAO Xuan
. QUADRUPOLE-OCTUPOLE TWO-PHONON EXCITATIONS IN INELASTIC SCATTERING. Chinese Physics C,
1983, 7(2): 236-244. |
-
Access
-
-