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Lepton flavor violation in the supersymmetric grand unified models with a lopsided mass matrix
Bi, XJ; Dai, YB; Bi, XJ , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China.
2002
发表期刊PHYSICAL REVIEW D
ISSN0556-2821
卷号66期号:7页码:-
摘要The tiny neutrino masses measured in neutrino oscillation experiments can be naturally explained via a supersymmetric seesaw mechanism. If supersymmetry breaking is mediated by gravity, such seesaw models may predict observable lepton flavor violating effects. In this work, we investigate the lepton flavor violating process mu-->egamma in supersymmetric seesaw models with a "lopsided" charged lepton mass matrix. Constraints set by the muon anomalous magnetic moment are taken into account. We find that such models generally predict a branching ratio for mu-->egamma far above the current experimental limit. Thus this process strongly constrains models of this type. Such restrictions suggest a novel form for the charged lepton mass matrix, featuring a "lopsided" structure for elements between both the 2-3 and the 1-3 generations. This structure produces a very small 1-3 mixing and a large 1-2 mixing in the charged lepton sector, leading naturally to a small Br(mu-->egamma) and to the large mixing angle solution for the solar neutrino problem.
部门归属Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China; Acad Sinica, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词Anomalous Magnetic-moment Right-handed Neutrinos Angle Msw Solution Particle Physics E-6 Unification Solar Oscillations Decay Tau->mu-gamma Predictions
学科领域Physics
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收录类别SCI
WOS记录号WOS:000179068200063
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被引频次:24[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/311006/13426
专题理论物理所SCI论文
通讯作者Bi, XJ , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China.
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Bi, XJ,Dai, YB,Bi, XJ , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China.. Lepton flavor violation in the supersymmetric grand unified models with a lopsided mass matrix[J]. PHYSICAL REVIEW D,2002,66(7):-.
APA Bi, XJ,Dai, YB,&Bi, XJ , Tsing Hua Univ, Dept Phys, Beijing 100084, Peoples R China..(2002).Lepton flavor violation in the supersymmetric grand unified models with a lopsided mass matrix.PHYSICAL REVIEW D,66(7),-.
MLA Bi, XJ,et al."Lepton flavor violation in the supersymmetric grand unified models with a lopsided mass matrix".PHYSICAL REVIEW D 66.7(2002):-.
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