Gravitino production during preheating

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dc.creatorMaroto, Antonio L.
dc.date1999-06-16
dc.date.accessioned2026-07-07T12:03:32Z
dc.date.available2026-07-07T12:03:32Z
dc.descriptionWe study the production of gravitinos during the preheating era after inflation by means of the non-perturbative Bogolyubov technique. Considering only the helicity $\pm 3/2$ states, the problem is reduced to the simpler Dirac fermions case. We calculate the production in a particular supergravity model in an expanding universe and obtain the spectrum and number density. Finally we compare the results with the nucleosynthesis bounds and extract some consequences.
dc.description10 pages, LaTeX, 2 figures. Talk given in the International Workshop on Particles in Astrophysics and Cosmology, Valencia (Spain), May 3-8, 1999
dc.identifierhttps://arxiv.org/abs/hep-ph/9906388
dc.identifierhttp://arxiv.org/abs/hep-ph/9906388
dc.identifierNucl.Phys.Proc.Suppl.81:351-355,2000
dc.identifierdoi:10.1016/S0920-5632(99)00896-8
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/207814
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Theory
dc.titleGravitino production during preheating
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