Journal
PHYSICS LETTERS B
Volume 718, Issue 3, Pages 957-964Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2012.11.026
Keywords
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Funding
- INFN program on Astroparticle Physics
- Italian MIUR
- World Premier International Research Center Initiative (WPI Initiative), MEXT, Japan
- DFG
- ERC [267104]
- Graduiertenkolleg Particle Physics at the Energy Frontier of New Phenomena
- Fundacao para a Ciencia e a Tecnologia (FCT, Portugal) [PTDC/FIS/098188/2008, CERN/FP/116328/2010]
- CFTP-FCT Unit 777
- POCTI (FEDER)
- Fundação para a Ciência e a Tecnologia [CERN/FP/116328/2010] Funding Source: FCT
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The couplings of the low scale type I see-saw model are severely constrained by the requirement of reproducing the correct neutrino mass and mixing parameters, by the non-observation of lepton number and charged lepton flavour violating processes and by electroweak precision data. We show that all these constraints still allow for the possibility of an exotic Higgs decay channel into a light neutrino and a heavy neutrino with a sizable branching ratio. We also estimate the prospects to observe this decay at the LHC and discuss its complementarity to the indirect probes of the low scale type I see-saw model from experiments searching for the mu -> e gamma decay. (C) 2012 Elsevier B.V. All rights reserved.
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