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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/8265
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dc.contributor.authorAlam, Khursid-
dc.contributor.authorBastero-Gil, Mar-
dc.contributor.authorDuttaa, Koushik-
dc.contributor.authorRagavendrac, H.V.-
dc.date.accessioned2024-06-06T09:04:38Z-
dc.date.available2024-06-06T09:04:38Z-
dc.date.issued2023-11-28-
dc.identifier.citationJournal of Cosmology and Astroparticle Physics, 2023, Article No. 095en_US
dc.identifier.urihttp://hdl.handle.net/2289/8265-
dc.descriptionRestricted Accessen_US
dc.description.abstractProduction of gravitationally coupled light moduli fields must be suppressed in the early universe so that its decay products do not alter Big Bang Nucleosynthesis (BBN) predictions for light elements. On the other hand, the moduli quanta can be copiously produced non-thermally during preheating after the end of inflation. In this work, we study the production of moduli in the -attractor inflationary model through parametric resonances. For our case, where the inflationary potential at its minimum is quartic, the inflaton field self-resonates, and subsequently induces a large production of moduli particles. We find that this production is suppressed for small values of . Combining semi-analytical estimation and numerical lattice simulations, we infer the parametric dependence on and learn that needs to be . 10−8m2 Pl to be consistent with BBN for O(1) coupling between inflaton and moduli. This in turn predicts an upper bound on the energy scale of inflation and on the reheating temperature.en_US
dc.language.isoenen_US
dc.publisherIOP Publishing Lmt.en_US
dc.relation.urihttps://doi.org/10.1088/1475-7516/2023/11/095en_US
dc.rights2023, IOP Publishing Ltd.en_US
dc.subjectcosmology of theories beyond the SMen_US
dc.subjectinflationen_US
dc.subjectparticle physics - cosmology connectionen_US
dc.subjectphysics of the early universeen_US
dc.titleNon-thermal moduli production during preheating in -attractor inflation modelsen_US
dc.typeArticleen_US
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