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

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dc.contributor.author	Gu, Pei-Hong
dc.contributor.author	Hirsch, Martin
dc.contributor.author	Sarkar, Utpal
dc.contributor.author	Furtado Valle, José Wagner
dc.date.accessioned	2014-08-25T10:39:23Z
dc.date.available	2014-08-25T10:39:23Z
dc.date.issued	2009
dc.identifier.citation	Gu, Pei-Hong Hirsch, Martin Sarkar, Utpal Furtado Valle, José Wagner 2009 Neutrino masses, leptogenesis, and dark matter in a hybrid seesaw model Physical Review D 79 3 033010
dc.identifier.uri	http://hdl.handle.net/10550/37386
dc.description.abstract	We 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.
dc.language.iso	eng
dc.relation.ispartof	Physical Review D, 2009, vol. 79, num. 3, p. 033010
dc.subject	Física
dc.title	Neutrino masses, leptogenesis, and dark matter in a hybrid seesaw model
dc.type	journal article	es_ES
dc.date.updated	2014-08-25T10:39:23Z
dc.identifier.doi	10.1103/PhysRevD.79.033010
dc.identifier.idgrec	059494
dc.rights.accessRights	open access	es_ES