Gravitino production in the warm inflationary scenario

Abstract

We estimate the production of gravitinos during and after the end of a period of warm inflation, a model in which radiation is produced continuously as the field rolls down the potential producing dissipation. We find that gravitino production is efficient for models in the strong dissipation regime, with the result that standard nucleosynthesis is disrupted unless the magnitude of the inflaton potential is very small. Combining this with the constraint from the thermal production of adiabatic density perturbations we find the dissipation rate must be extraordinarily strong, or that the potential is very flat.

7 pages, 3 figures, submitted to Phys Rev D

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• Perturbation Spectra in the Warm Inflationary Scenario
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• Non-Thermal Production of Dangerous Relics in the Early Universe
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Cited by in corpus (9)

• Warm Inflation and its Microphysical Basis
• The warm inflation story
• Thermal Effects on Pure and Hybrid Inflation
• Gravitino cosmology in supersymmetric warm inflation
• Cosmological Constraints on Dissipative Models of Inflation
• Dark Matter production during Warm Inflation via Freeze-In
• The gravitino problem in supersymmetric warm inflation
• Gravitino production in a thermal Universe revisited
• Inflation and Generalized O'Raifeartaigh SUSY models