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Supersyrnmetry for fermion masses
Liu Chun; Liu, C , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China
2007
发表期刊COMMUNICATIONS IN THEORETICAL PHYSICS
ISSN0253-6102
卷号47期号:6页码:1088-1098
摘要It is proposed that supersymmetry (SUSY) may be used to understand fermion mass hierarchies. A family symmetry Z(3L) is introduced, which is the cyclic symmetry among the three generation SU(2) doublets. SUSY breaks at a high energy scale similar to 10(11) GeV. The electroweak energy scale similar to 100 GeV is unnaturally small. No additional global symmetry, like the R-parity, is imposed. The Yukawa couplings and R-parity violating couplings all take their natural values, which are O(10(0) similar to 10(-2)). Under the family symmetry, only the third generation charged fermions get their masses. This family symmetry is broken in the soft SUSY breaking terms, which result in a hierarchical pattern of the fermion masses. It turns out that for the charged leptons, the tau mass is from the Higgs vacuum expectation value (VEV) and the sneutrino VEVs, the muon mass is due to the sneutrino VEVs, and the electron gains its mass due to both Z(3L) and SUSY breaking. The large neutrino mixing are produced with neutralinos playing the partial role of right-handed neutrinos. vertical bar V-e3 vertical bar, which is for v.-v, mixing, is expected to be about 0.1. For the quarks, the third generation masses ate from the Higgs VEVs, the second generation masses are from quantum corrections, and the down quark mass due to the sneutrino VEVs. It explains m(c)/m(s), m(s)/(me), m(d) > m(u), and so on. Other aspects of the model are discussed.
部门归属Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
关键词R-parity Violation Supersymmetric Standard Model Softly Broken Supersymmetry Low-energy Supersymmetry Split Supersymmetry Grand Unification Lepton-number Cp-violation Coupling-constants Symmetry-breaking
学科领域Physics
收录类别SCI
WOS记录号WOS:000247224100025
引用统计
被引频次:10[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/311006/5715
专题理论物理所1978-2010年知识产出
通讯作者Liu, C , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China
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GB/T 7714
Liu Chun,Liu, C , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China. Supersyrnmetry for fermion masses[J]. COMMUNICATIONS IN THEORETICAL PHYSICS,2007,47(6):1088-1098.
APA Liu Chun,&Liu, C , Chinese Acad Sci, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.(2007).Supersyrnmetry for fermion masses.COMMUNICATIONS IN THEORETICAL PHYSICS,47(6),1088-1098.
MLA Liu Chun,et al."Supersyrnmetry for fermion masses".COMMUNICATIONS IN THEORETICAL PHYSICS 47.6(2007):1088-1098.
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