Triple seesaw mechanism

On fitting the type II seesaw mechanism into the type I seesaw mechanism, we obtain a formula to the neutrino masses which get suppressed by high-scale M3 in its denominator. As a result, light neutrinos are naturally obtained with new physics at TeV scale. As interesting consequence, the mechanism...

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Bibliographic Details
Published in:Physics letters. B 2010-04, Vol.687 (4-5), p.400-404
Main Authors: Cogollo, D., Diniz, H., de S. Pires, C.A.
Format: Article
Language:English
Subjects:
3-3-1 model
Elementary particles
Exact sciences and technology
Fittings
Mathematical models
Neutrino masses
Neutrinos
Nuclear physics
Physics
Seesaw mechanisms
Standard model
The physics of elementary particles and fields
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Summary:On fitting the type II seesaw mechanism into the type I seesaw mechanism, we obtain a formula to the neutrino masses which get suppressed by high-scale M3 in its denominator. As a result, light neutrinos are naturally obtained with new physics at TeV scale. As interesting consequence, the mechanism may be directly probed at the LHC by directly producing the TeV states intrinsic of the mechanism. We show that the 3-3-1 model with right-handed neutrinos realizes naturally such seesaw mechanism.
ISSN:0370-2693
1873-2445
DOI:10.1016/j.physletb.2010.03.066