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Title

Neutrino masses, leptogenesis, and dark matter in a hybrid seesaw model

AuthorsGu, P.H.; Hirsch, Martin ; Sarkar, U.; Valle, José W. F.
Issue Date18-Feb-2009
PublisherAmerican Physical Society
CitationPhys.Rev.D79:033010,2009
AbstractWe suggest a hybrid seesaw model where relatively light right-handed neutrinos give no contribution to neutrino mass matrix due to a special symmetry. This allows their Yukawa couplings to the standard model particles to be relatively strong, so that the standard model Higgs boson can decay dominantly to a left- and a right-handed neutrino, leaving another stable right-handed neutrino as cold dark matter. In our model neutrino masses arise via the type-II seesaw mechanism, the Higgs triplet scalars being also responsible for the generation of the matter-antimatter asymmetry via the leptogenesis mechanism.
Description4 pages.-- ISI article identifier:000263816600020.-- ArXiv pre-print avaible at:http://arxiv.org/abs/0811.0953
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevD.79.033010
URIhttp://hdl.handle.net/10261/15948
DOI10.1103/PhysRevD.79.033010
ISSN1550-7998
Appears in Collections:(IFIC) Artículos
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