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Leptogenesis with small violation of B-L

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dc.contributor.author	Racker, Jean Jacques
dc.contributor.author	Peña Jiménez, Manuel
dc.contributor.author	Rius Dionis, Nuria
dc.date.accessioned	2015-03-03T11:08:31Z
dc.date.available	2015-03-03T11:08:31Z
dc.date.issued	2012
dc.identifier.citation	Racker, Jean Jacques Peña Jiménez, Manuel Rius Dionis, Nuria 2012 Leptogenesis with small violation of B-L Journal Of Cosmology And Astroparticle Physics 07 7 030-1 030-20
dc.identifier.uri	http://hdl.handle.net/10550/42583
dc.description.abstract	We analyze leptogenesis in the context of seesaw models with almost conserved lepton number, focusing on the L-conserving contribution to the flavoured CP asymmetries. We find that, contrary to previous claims, successful leptogenesis is feasible for masses of the lightest heavy neutrino as low as M-1 similar to 10(6) GeV, without resorting to the resonant enhancement of the CP asymmetry for strongly degenerate heavy neutrinos. This lower limit renders thermal leptogenesis compatible with the gravitino bound in supersymmetric scenarios.
dc.language.iso	eng
dc.relation.ispartof	Journal Of Cosmology And Astroparticle Physics, 2012, vol. 07, num. 7, p. 030-1-030-20
dc.subject	Física
dc.title	Leptogenesis with small violation of B-L
dc.type	journal article	es_ES
dc.date.updated	2015-03-03T11:08:32Z
dc.identifier.doi	10.1088/1475-7516/2012/07/030
dc.identifier.idgrec	080221
dc.rights.accessRights	open access	es_ES