Supersymmetric seesaw mechanism without singlet neutrinos: Neutrino masses and lepton-flavor violation

被引：98
作者：
Rossi, A
机构：
[1] Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy
[2] Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy
来源：
PHYSICAL REVIEW D | 2002年 / 66卷 / 07期
关键词：
D O I：
10.1103/PhysRevD.66.075003
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We consider the supersymmetric seesaw mechanism induced by the exchange of heavy SU(2)(W) triplet states, rather than "right-handed" neutrino singlets, to generate neutrino masses. We show that in this scenario the neutrino flavor structure tested at low-energy in the atmospheric and solar neutrino experiments is directly inherited from the neutrino Yukawa couplings to the triplets. This allows us to predict the ratio of the tau-->mugamma (or tau-->egamma) and mu-->egamma decay rates in terms of the low-energy neutrino parameters. Moreover, once the model is embedded in a grand unified model, quark-flavor violation can be linked to lepton-flavor violation.
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页数：17
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