Lepton flavor violation and non-unitary lepton mixing in low-scale type-I seesaw

被引：96

作者：

Forero, D. V. ^{[1
]}

Morisi, S. ^{[1
]}

Tortola, M. ^{[1
]}

Valle, J. W. F. ^{[1
]}

机构：

[1] Univ Valencia, CSIC, Inst Fis Corpuscular, AHEP Grp,Edificio Inst Paterna, E-46071 Valencia, Spain

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2011年 / 09期

关键词：

Beyond Standard Model; Neutrino Physics; MASSLESS NEUTRINOS; NONCONSERVATION; CONVERSION; INVERSE; DECAYS; BARYON;

D O I：

10.1007/JHEP09(2011)142

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

Within low-scale seesaw mechanisms, such as the inverse and linear seesaw, one expects (i) potentially large lepton flavor violation (LFV) and (ii) sizeable non-standard neutrino interactions (NSI). We consider the interplay between the magnitude of non-unitarity effects in the lepton mixing matrix, and the constraints that follow from LFV searches in the laboratory. We find that NSI parameters can be sizeable, up to percent level in some cases, while LFV rates, such as that for mu -> e gamma, lie within current limits, including the recent one set by the MEG collaboration. As a result the upcoming long baseline neutrino experiments offer a window of opportunity for complementary LFV and weak universality tests.

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页数：18

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