Non-Perturbative Instabilities as a Solution of the Cosmological Moduli Problem

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dc.creatorShuhmaher, Natalia
dc.creatorBrandenberger, Robert
dc.date2005-07-12
dc.date.accessioned2026-07-07T06:26:45Z
dc.date.available2026-07-07T06:26:45Z
dc.descriptionIt is widely accepted that moduli in the mass range 10eV - $10^4$GeV which start to oscillate with an amplitude of the order of the Planck scale either jeopardize successful predictions of nucleosynthesis or overclose the Universe. It is shown that the moduli problem can be relaxed by making use of parametric resonance. A new non-perturbative decay channel for moduli oscillations is discussed. This channel becomes effective when the oscillating field results in a net negative mass term for the decay products. This scenario allows for the decay of the moduli much before nucleosynthesis and, therefore, leads to a complete solution of the cosmological moduli problem.
dc.description8 pages, no figures
dc.identifierhttps://arxiv.org/abs/hep-th/0507103
dc.identifierhttp://arxiv.org/abs/hep-th/0507103
dc.identifierPhys.Rev. D73 (2006) 043519
dc.identifierdoi:10.1103/PhysRevD.73.043519
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/97203
dc.subjectHigh Energy Physics - Theory
dc.subjectAstrophysics
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Phenomenology
dc.titleNon-Perturbative Instabilities as a Solution of the Cosmological Moduli Problem
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