Leptogenesis Below the Davidson-Ibarra Bound

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dc.creatorMa, Ernest
dc.creatorSahu, Narendra
dc.creatorSarkar, Utpal
dc.date2006-03-06
dc.date2006-03-17
dc.date.accessioned2026-07-07T07:06:06Z
dc.date.available2026-07-07T07:06:06Z
dc.descriptionThe observed baryon asymmetry of the Universe is suitably created in thermal leptogenesis through the out-of-equilibrium decay of $N_1$, the lightest of the three heavy singlet neutral fermions which anchor the seesaw mechanism to obtain small Majorana neutrino masses. However, this scenario suffers from the incompatibility of a generic lower bound on the mass of $N_1$ and the upper bound on the reheating temperature of the Universe after inflation. A modest resolution of this conundrum is proposed.
dc.description7 pages, 1 figure
dc.identifierhttps://arxiv.org/abs/hep-ph/0603043
dc.identifierhttp://arxiv.org/abs/hep-ph/0603043
dc.identifierJ.Phys. G32 (2006) L65-L68
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/109903
dc.subjectHigh Energy Physics - Phenomenology
dc.titleLeptogenesis Below the Davidson-Ibarra Bound
dc.typetext

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