Higgs-mediated τ→3μ in the supersymmetric seesaw model -: art. no. 241802

被引：139

作者：

Babu, KS ^{[1
]}

Kolda, C

机构：

[1] Oklahoma State Univ, Dept Phys, Stillwater, OK 74078 USA

[2] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA

来源：

PHYSICAL REVIEW LETTERS | 2002年 / 89卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.89.241802

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Recent observations of neutrino oscillations imply nonzero neutrino masses and lepton flavor violation (LFV), most economically explained by the seesaw mechanism. Within the context of supersymmetry, LFV among the neutrinos can be communicated to the sleptons and from there to the charged leptons. We show that LFV can appear in the couplings of the neutral Higgs bosons, an effect that is strongly enhanced at large tanbeta. We calculate the branching fraction for tau-->3mu and mu-->3e mediated by Higgs and find they can be as large as 10(-7) and 5x10(-14), respectively. These modes, along with tau-->mugamma and mu-->egamma, can provide key insights into the neutrino mass matrix.

引用

页数：4

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