Reheating after the Higgs Inflation

Abstract

Since the discovery of the Higgs particle in the LHC, numerous inflationary models utilize it as the inflaton. In this study, after establishing that Higgs inflation can be a viable model in the context of unimodular gravity, we address a scenario related to reheating, which plays a crucial role in connecting the inflationary era to a hot Big Bang universe. Also, we calculate essential parameters such as the temperature and the e-folds number according to the equation of the state parameter (${\omega }_{re}$) in this regime of reheating. The physics behind the reheating process are extremely imprecise at present, and we have only a very limited range of acceptable values for ${\omega }_{re}$. We analyze the compatibility with Planck2018, BICEP/Keck2021, DESI2024, and ACT array bounds and find that within this model, ${\omega }_{re}$ is restricted to the range $-1\le {\omega }_{re}\le \frac{1}{6}$.

13 pages, 4 figures, 1 table

References in corpus (25)

• Modified Gravity Theories on a Nutshell: Inflation, Bounce and Late-time Evolution
• The Standard Model Higgs boson as the inflaton
• On the Naturalness of Higgs Inflation
• The Cosmological Constant Problem and Quintessence
• On Inflation with Non-minimal Coupling
• Inflation and quintessence with nonminimal coupling
• Reheating predictions in single field inflation
• Equation-of-State Parameter for Reheating
• Non-minimal coupling of the scalar field and inflation
• Cosmological Perturbations in Unimodular Gravity
• Inflation by non-minimal coupling
• Unimodular $F(R)$ Gravity
• Planck and BICEP/Keck Array 2018 constraints on primordial gravitational waves and perspectives for future B-mode polarization measurements
• Darkness without dark matter and energy -- generalized unimodular gravity
• Accounting for the time evolution of the equation of state parameter during reheating
• Cosmological Implications of Unimodular Gravity
• Braneworld non-minimal inflation with induced gravity
• Testing Unimodular Gravity
• Reconstruction of a Nonminimal Coupling Theory with Scale-invariant Power Spectrum
• Reheating temperature in non-minimal derivative coupling model
• Quartic inflation and radiative corrections with non-minimal coupling
• Newton law in covariant unimodular $F(R)$ gravity
• $f(\varphi )R$-models for inflation
• Reheating constraints on K-inflation
• The End for Extended Inflation?