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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.
2004
发表期刊PHYSICS LETTERS B
ISSN0370-2693
卷号580期号:40972页码:163-168
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.
部门归属CCAST, World Lab, Beijing 100080, Peoples R China; Acad Sinica, Inst High Energy Phys, Beijing 100039, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Electric-dipole Moment Supersymmetric Theories Experimental Limit Neutron Qcd
学科领域Physics
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收录类别SCI
WOS记录号WOS:000188413000009
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/14129
专题理论物理所1978-2010年知识产出
通讯作者Ma, JP , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
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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.
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