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题名: Non-unitarity of CKM matrix from vector singlet quark mixing and neutron electric dipole moment
作者: Liao, Y ;  Li, XY
刊名: PHYSICS LETTERS B
出版日期: 2001
卷号: 503, 期号:40972, 页码:301-306
关键词: BACKGROUND-FIELD METHOD ;  KOBAYASHI-MASKAWA MODEL ;  INDUCED THETA-TERM ;  CP-VIOLATION ;  STANDARD MODEL ;  B0 DECAYS ;  GAUGE-INVARIANCE ;  HANDED CURRENTS ;  ASYMMETRIES ;  FERMIONS
学科分类: Physics
通讯作者: Li, XY , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
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
英文摘要: 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.
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000167817400009
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/12793
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:
Liao, Y,Li, XY. Non-unitarity of CKM matrix from vector singlet quark mixing and neutron electric dipole moment[J]. PHYSICS LETTERS B,2001,503(40972):301-306.
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