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Non-unitarity of CKM matrix from vector singlet quark mixing and neutron electric dipole moment
Liao, Y; Li, XY; Li, XY , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
2001
发表期刊PHYSICS LETTERS B
ISSN0370-2693
卷号503期号:40972页码:301-306
摘要In the standard model (SM) the lowest order contribution to the quark electric dipole moment (EDM) occurs at the three loop level. We show that the non-unitarity of the CKM matrix in models with an extended quark sector typically gives rise to a quark EDM at the two loop level which has no GIM-like suppression factors except the external quark mass. The induced neutron EDM is of order 10(-29) e cm and can be well within the reach of the next generation of experiments if it is further enhanced by long distance physics as happens in the SM. (C) 2001 Published by Elsevier Science B.V.
部门归属Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China
关键词Background-field Method Kobayashi-maskawa Model Induced Theta-term Cp-violation Standard Model B0 Decays Gauge-invariance Handed Currents Asymmetries Fermions
学科领域Physics
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收录类别SCI
WOS记录号WOS:000167817400009
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被引频次:12[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/311006/12793
专题理论物理所1978-2010年知识产出
通讯作者Li, XY , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
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GB/T 7714
Liao, Y,Li, XY,Li, XY , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.. Non-unitarity of CKM matrix from vector singlet quark mixing and neutron electric dipole moment[J]. PHYSICS LETTERS B,2001,503(40972):301-306.
APA Liao, Y,Li, XY,&Li, XY , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China..(2001).Non-unitarity of CKM matrix from vector singlet quark mixing and neutron electric dipole moment.PHYSICS LETTERS B,503(40972),301-306.
MLA Liao, Y,et al."Non-unitarity of CKM matrix from vector singlet quark mixing and neutron electric dipole moment".PHYSICS LETTERS B 503.40972(2001):301-306.
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