Inflaton Oscillations and Post-Inflationary Reheating
arXiv:2012.10756 · doi:10.1088/1475-7516/2021/04/012
Abstract
We analyze in detail the perturbative decay of the inflaton oscillating about a generic form of its potential , taking into account the effects of non-instantaneous reheating. We show that evolution of the temperature as a function of the cosmological scale factor depends on the spin statistics of the final state decay products when . We also include the inflaton-induced mass of the final states leading to either kinematic suppression or enhancement if the final states are fermionic or bosonic respectively. We compute the maximum temperature reached after inflation, the subsequent evolution of the temperature and the final reheat temperature. We apply our results to the computation of the dark matter abundance through thermal scattering during reheating. We also provide an example based on supersymmetry for the coupling of the inflaton to matter.
40 pages, 17 figures
References in corpus (14)
- The Dawn of FIMP Dark Matter: A Review of Models and Constraints
- Big-Bang Nucleosynthesis and Gravitino
- Thermal production of gravitinos
- Constraints on the Reheating Temperature in Gravitino Dark Matter Scenarios
- Primordial Curvature Fluctuation and Its Non-Gaussianity in Models with Modulated Reheating
- Enhancement of the Dark Matter Abundance Before Reheating: Applications to Gravitino Dark Matter
- Dark Matter and Gauge Coupling Unification in Non-supersymmetric SO(10) Grand Unified Models
- The Impact of New d(p,γ)He3 Rates on Big Bang Nucleosynthesis
- Inflation and High-Scale Supersymmetry with an EeV Gravitino
- Radiative Production of Non-thermal Dark Matter
- Dissipative Effects on Reheating after Inflation
- Asymmetric Dark Matter Models in SO(10)
- Inflation and Leptogenesis in High-Scale Supersymmetry
- Disformal Dark Matter