CP test in J/psi -> gamma phi phi decay

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	CP test in J/psi -> gamma phi phi decay
	Ma, JP; Ping, RG; Zou, BS; Ma, JP , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
刊名	PHYSICS LETTERS B
	2004
卷号	580 期号:40972 页码:163-168
关键词	Electric-dipole Moment Supersymmetric Theories Experimental Limit Neutron Qcd
ISSN号	0370-2693
英文摘要	We propose to test CP symmetry in the decay J/psi --> gammaphiphi, for which large data sample exists at BESII, and a data sample of 10(10) J/psi's will be collected with BESIII and CLEO-C program. We suggest some CP asymmetries in this decay mode for CP test. Assuming that CP violation is introduced by the electric- and chromo-dipole moment of charm quark, these CP asymmetries can be predicted by using valence quark models. Our work shows a possible way to get information about the electric- and chromo-dipole moment of charm quark, which is little known. Our results show that with the current data sample of J/psi, electric- and chromo-dipole moment can be probed at order of 10(-13) ecm. In the near future with a 10(10) data sample, these moments can be probed at order of 10(-14) ecm. (C) 2003 Elsevier B.V. All rights reserved.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000188413000009
公开日期	2012-08-30
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/14129]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Ma, JP , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
推荐引用方式 GB/T 7714	Ma, JP,Ping, RG,Zou, BS,et al. CP test in J/psi -> gamma phi phi decay[J]. PHYSICS LETTERS B,2004,580(40972):163-168.
APA	Ma, JP,Ping, RG,Zou, BS,&Ma, JP , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China..(2004).CP test in J/psi -> gamma phi phi decay.PHYSICS LETTERS B,580(40972),163-168.
MLA	Ma, JP,et al."CP test in J/psi -> gamma phi phi decay".PHYSICS LETTERS B 580.40972(2004):163-168.