Constraining the primordial spectrum of metric perturbations from gravitino and moduli production

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dc.creatorMaroto, Antonio L.
dc.date2001-11-10
dc.date2002-01-18
dc.date.accessioned2026-07-07T12:02:51Z
dc.date.available2026-07-07T12:02:51Z
dc.descriptionWe consider the production of gravitinos and moduli fields from quantum vacuum fluctuations induced by the presence of scalar metric perturbations at the end of inflation. We obtain the corresponding occupation numbers, up to first order in perturbation theory, in terms of the power spectrum of the metric perturbations. We compute the limits imposed by nucleosynthesis on the spectral index $n_s$ for different models with constant $n_s$. The results show that, in certain cases, such limits can be as strong as $n_s<1.12$, which is more stringent than those coming from primordial black hole production.
dc.description16 pages, LaTeX, 5 figures. Corrected figures, new references included. Final version to appear in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/hep-ph/0111126
dc.identifierhttp://arxiv.org/abs/hep-ph/0111126
dc.identifierPhys.Rev.D65:083508,2002
dc.identifierdoi:10.1103/PhysRevD.65.083508
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/207580
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Theory
dc.titleConstraining the primordial spectrum of metric perturbations from gravitino and moduli production
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