Probing the Reheating Temperature at Colliders and with Primordial Nucleosynthesis

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dc.creatorSteffen, Frank Daniel
dc.date2008-06-19
dc.date2008-07-09
dc.date.accessioned2026-07-07T11:51:50Z
dc.date.available2026-07-07T11:51:50Z
dc.descriptionConsidering gravitino dark matter scenarios with a long-lived charged slepton, we show that collider measurements of the slepton mass and its lifetime can probe not only the gravitino mass but also the post-inflationary reheating temperature TR. In a model independent way, we derive upper limits on TR and discuss them in light of the constraints from the primordial catalysis of lithium-6 through bound-state effects. In the collider-friendly region of slepton masses below 1 TeV, the obtained conservative estimate of the maximum reheating temperature is about TR=3\times 10^9 GeV for the limiting case of a small gluino-slepton mass splitting and about TR=10^8 GeV for the case that is typical for universal soft supersymmetry breaking parameters at the scale of grand unification. We find that a determination of the gluino-slepton mass ratio at the Large Hadron Collider will test the possibility of TR>10^9 GeV and thereby the viability of thermal leptogenesis with hierarchical heavy right-handed Majorana neutrinos.
dc.description10 pages, 3 figures; revised version (references added, minor corrections)
dc.identifierhttps://arxiv.org/abs/0806.3266
dc.identifierhttp://arxiv.org/abs/0806.3266
dc.identifierPhys.Lett.B669:74-80,2008
dc.identifierdoi:10.1016/j.physletb.2008.09.036
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/204031
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.subjectNuclear Theory
dc.titleProbing the Reheating Temperature at Colliders and with Primordial Nucleosynthesis
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