Higgs-mediated τ → 3μ in the supersymmetric seesaw model
Higgs-mediated τ → 3μ in the supersymmetric seesaw model
复制标题
超对称跷跷板模型中希格斯介导的 τ → 3μ
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
C. Kolda
中科院分区：
文献类型：
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作者：
K. Babu;C. Kolda
最近对中微子振荡的观测表明中微子质量不为零，轻子味违反（LFV），最经济的解释是跷跷板机制。在超对称性的背景下，中微子中的LFV可以传递到轻子，并从那里传递到带电轻子。我们发现LFV可以出现在中性希格斯玻色子的耦合中，这种效应在大tan（β）时强烈增强。我们计算了由Higgs介导的tau-> 3 micro和micro->3e的分支分数，发现它们分别可以大到10（-7）和5x 10（-14）。这些模式，沿着τ--> μ gamma和μ-->egamma，可以提供对中微子质量矩阵的关键见解。
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 tan(beta. We calculate the branching fraction for tau-->3micro and micro-->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.