Constraints on the Reheating Temperature in Gravitino Dark Matter Scenarios

Simple item page
dc.creatorPradler, Josef
dc.creatorSteffen, Frank Daniel
dc.date2006-12-21
dc.date2007-03-02
dc.date.accessioned2026-07-07T11:02:27Z
dc.date.available2026-07-07T11:02:27Z
dc.descriptionConsidering gravitino dark matter scenarios, we study constraints on the reheating temperature of inflation. We present the gauge-invariant result for the thermally produced gravitino yield to leading order in the Standard Model gauge couplings. Within the framework of the constrained minimal supersymmetric Standard Model (CMSSM), we find a maximum reheating temperature of about 10^7 GeV taking into account bound-state effects on the primordial $^6$Li abundance. We show that late-time entropy production can relax this constraint significantly. Only with a substantial entropy release after the decoupling of the lightest Standard Model superpartner, thermal leptogenesis remains a viable explanation of the cosmic baryon asymmetry within the CMSSM.
dc.description13 pages, 15 figures, revised version accepted for publication (reheating phase considered, improved treatment of entropy production, revised last section, references added)
dc.identifierhttps://arxiv.org/abs/hep-ph/0612291
dc.identifierhttp://arxiv.org/abs/hep-ph/0612291
dc.identifierPhys.Lett.B648:224-235,2007
dc.identifierdoi:10.1016/j.physletb.2007.02.072
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188255
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.titleConstraints on the Reheating Temperature in Gravitino Dark Matter Scenarios
dc.typetext

Files

Collections

arXiv