Big-Bang Nucleosynthesis with Unstable Gravitino and Upper Bound on the Reheating Temperature

Simple item page
dc.creatorKohri, Kazunori
dc.creatorMoroi, Takeo
dc.creatorYotsuyanagi, Akira
dc.date2005-07-20
dc.date.accessioned2026-07-07T11:04:46Z
dc.date.available2026-07-07T11:04:46Z
dc.descriptionWe study the effects of the unstable gravitino on the big-bang nucleosynthesis. If the gravitino mass is smaller than \sim 10 TeV, primordial gravitinos produced after the inflation are likely to decay after the big-bang nucleosynthesis starts, and the light element abundances may be significantly affected by the hadro- and photo-dissociation processes as well as by the p n conversion process. We calculate the light element abundances and derived upper bound on the reheating temperature after the inflation. In our analysis, we calculate the decay parameters of the gravitino (i.e., lifetime and branching ratios) in detail. In addition, we performed a systematic study of the hadron spectrum produced by the gravitino decay, taking account of all the hadrons produced by the decay products of the gravitino (including the daughter superparticles). We discuss the model-dependence of the upper bound on the reheating temperature.
dc.description32 pages, 11 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0507245
dc.identifierhttp://arxiv.org/abs/hep-ph/0507245
dc.identifierPhys.Rev.D73:123511,2006
dc.identifierdoi:10.1103/PhysRevD.73.123511
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/189008
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.titleBig-Bang Nucleosynthesis with Unstable Gravitino and Upper Bound on the Reheating Temperature
dc.typetext

Files

Collections

arXiv