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题名: CP test in J/psi -> gamma phi phi decay
作者: Ma, JP ;  Ping, RG ;  Zou, BS
刊名: PHYSICS LETTERS B
出版日期: 2004
卷号: 580, 期号:40972, 页码:163-168
关键词: ELECTRIC-DIPOLE MOMENT ;  SUPERSYMMETRIC THEORIES ;  EXPERIMENTAL LIMIT ;  NEUTRON ;  QCD
学科分类: Physics
通讯作者: Ma, JP , CCAST, World Lab, POB 8730, Beijing 100080, Peoples R China.
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
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.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000188413000009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14129
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Ma, JP,Ping, RG,Zou, BS. CP test in J/psi -> gamma phi phi decay[J]. PHYSICS LETTERS B,2004,580(40972):163-168.
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