Perturbative Reheating in the Mixed Higgs-$R^2$ Model

Abstract

The preheating process in the mixed Higgs-$R^2$ model has been investigated in depth recently, but the analysis of perturbative reheating is still missing. In this paper, we discuss the effect of perturbative decay during (p)reheating in this model. It is shown that perturbative decay can play an important role throughout the whole reheating process. Depending on the model parameters, perturbative decay can affect different stages of the reheating. We study the perturbative reheating with and without the presence of early preheating stage, and calculate the reheating temperature and the duration of the whole perturbative process. We find that the detail of the early preheating stage may not affect the final reheating temperature while it can affect the number of e-folds of reheating.

20 pages plus appendices and references. Match published version

References in corpus (15)

• The Standard Model Higgs boson as the inflaton
• Higgs inflation: consistency and generalisations
• Inflation scenario via the Standard Model Higgs boson and LHC
• Power-counting and the Validity of the Classical Approximation During Inflation
• On Inflation with Non-minimal Coupling
• Unitarizing Higgs Inflation
• Violent Preheating in Inflation with Nonminimal Coupling
• Scalaron the mighty: producing dark matter and baryon asymmetry at reheating
• Probing reheating with primordial spectrum
• Some like it hot: $R^2$ heals Higgs inflation, but does not cool it
• Occurrence of Tachyonic Preheating in the Mixed Higgs-$R^2$ Model
• Higgs Inflation as Nonlinear Sigma Model and Scalaron as its $\sigma$-meson
• A heatwave affair: mixed Higgs-$R^2$ preheating on the lattice
• On Preheating in Higgs Inflation
• Multi-field inflation and preheating in asymmetric $\alpha$-attractors

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• Higgs-Modular Inflation
• Affleck-Dine Leptogenesis from Higgs Inflation
• Enhanced Curvature Perturbation and Primordial Black Hole Formation in Two-stage Inflation with a break
• On UV-completion of Palatini-Higgs inflation
• Reheating and Dark Matter Freeze-in in the Higgs-$R^2$ Inflation Model
• Type II Seesaw Leptogenesis
• The Inflaton that Could : Primordial Black Holes and Second Order Gravitational Waves from Tachyonic Instability induced in Higgs-$R^2$ Inflation
• Issues in Palatini ${\mathcal{R}}^2$ inflation: Bounds on the Reheating Temperature
• Ultraviolet Unitarity Violations in Non-minimally Coupled Scalar-Starobinsky Inflation
• Ultraviolet Sensitivity in Higgs-Starobinsky Inflation
• Baryogenesis in $R^2$-Higgs Inflation: the Gravitational Connection
• No-scale Brans-Dicke Gravity -- ultralight scalar boson & heavy inflaton
• Inflation and Supersymmetry Breaking in Higgs-$R^2$ Supergravity
• More on scattering processes of dressed particles with a time-dependent mass
• On Inflation and Reheating Features in the Higgs-$R^2$ Model
• Non-perturbative approach for scalar particle production in Higgs-$R^2$ inflation
• The $R^2$-Higgs inflation with two Higgs doublets