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

dc.contributor.authorLópez Maroto, Antonio
dc.date.accessioned2023-06-20T19:09:31Z
dc.date.available2023-06-20T19:09:31Z
dc.date.issued2002-03-29
dc.description© 2002 The American Physical Society. I am grateful to A. Linde and L. Kofman for useful comments. This work has been partially supported by the CICYT (Spain) projects AEN97-1693 and FPA2000-0956. The author also acknowledges financial support from the Universidad Complutense del Amo program.
dc.description.abstractWe 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.description.departmentDepto. de Física Teórica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipCICYT (Spain)
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/27293
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dc.identifier.doi10.1103/PhysRevD.65.083508
dc.identifier.issn0556-2821
dc.identifier.officialurlhttp://dx.doi.org/10.1103/PhysRevD.65.083508
dc.identifier.relatedurlhttp://journals.aps.org/
dc.identifier.urihttps://hdl.handle.net/20.500.14352/59327
dc.issue.number8
dc.journal.titlePhysical Review D
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.relation.projectIDAEN97-1693
dc.relation.projectIDFPA2000-0956
dc.rights.accessRightsopen access
dc.subject.cdu53
dc.subject.keywordBig-bang nucleosynthesis
dc.subject.keywordInhomogeneous cosmologies
dc.subject.keywordHybrid inflation
dc.subject.keywordParticles
dc.subject.keywordFermions
dc.subject.keywordField
dc.subject.keywordSupersymmetry
dc.subject.keywordFluctuations
dc.subject.keywordSupergravity
dc.subject.keywordUniverse
dc.subject.ucmFísica (Física)
dc.subject.unesco22 Física
dc.titleConstraining the primordial spectrum of metric perturbations from gravitino and moduli production
dc.typejournal article
dc.volume.number65
dspace.entity.typePublication
relation.isAuthorOfPublicatione14691a1-d3b0-47b7-96d5-24d645534471
relation.isAuthorOfPublication.latestForDiscoverye14691a1-d3b0-47b7-96d5-24d645534471
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