Higgs boson induced reheating and ultraviolet frozen-in dark matter

Abstract

A reheating phase in the early universe is an essential part of all inflationary models during which not only the Standard Model (SM) quanta are produced but it can also shed light on the production of dark matter. In this work, we explore a class of reheating models where the reheating is induced by a cubic interaction of the inflaton $\varphi$ to the SM Higgs boson $\text{h}$ of the form $g_{h\varphi }{M}_{\mathrm{Pl}}\varphi |\text{h}{|}^2$ adopting the $\alpha$-attractor T-model of inflation. Assuming inflaton as a background field such interaction implies a $\varphi$-dependent mass term of the Higgs boson and a non-trivial phase-space suppression of the reheating efficiency. As a consequence, the reheating is prolonged and the maximal temperature of the SM thermal bath is reduced. In particular, due to oscillations of the inflaton field the $\varphi$-dependent Higgs boson mass results in periodic transitions between phases of broken and unbroken electroweak gauge symmetry. The consequences of these rapid phase transitions have been studied in detail. A purely gravitational reheating mechanism in the presence of the inflaton background, i.e., for $g_{h\varphi }=0$, has also been investigated. It turned out that even though it may account for the total production of SM radiation in the absence of $g_{h\varphi }$, its contribution to the reheating is subdominant for the range of $g_{h\varphi }$ considered in this work. As a dark matter candidate, a massive Abelian vector boson, $X_{\mu }$, has been considered. Various production mechanisms of $X_{\mu }$ have been discussed including (i) purely gravitational production from the inflaton background, (ii) gravitational freeze-in from the SM quanta, (iii) inflaton decay through a dim-5 effective operator, and (iv) Higgs portal freeze-in and Higgs decay through a dim-6 effective operator. Parameters that properly describe the observed relic abundance have been determined.

v2: 38 pages, 16 figures and 3 tables; added a subsection on tachyonic resonant production of Higgs boson; matches published version in JHEP

References in corpus (20)

• Neutralino with the Right Cold Dark Matter Abundance in (Almost) Any Supersymmetric Model
• Improved limits on the tensor-to-scalar ratio using BICEP and Planck
• Primordial Curvature Fluctuation and Its Non-Gaussianity in Models with Modulated Reheating
• Non-Gaussianity, Spectral Index and Tensor Modes in Mixed Inflaton and Curvaton Models
• Inflaton Oscillations and Post-Inflationary Reheating
• Gravitational Production of Dark Matter during Reheating
• Gravitational Effects on Inflaton Decay
• On Thermal Gravitational Contribution to Particle Production and Dark Matter
• Gravitational portals in the early Universe
• Gravitational Portals with Non-Minimal Couplings
• BICEP/Keck Constraints on Attractor Models of Inflation and Reheating
• Ultraviolet Freeze-in with a Time-dependent Inflaton Decay
• Boltzmann or Bogoliubov? Approaches Compared in Gravitational Particle Production
• Scalar Dark Matter Production from Preheating and Structure Formation Constraints
• Interplay between neutrino and gravity portals for FIMP dark matter
• Gravitational Production of a Conformal Dark Sector
• Implications of time-dependent inflaton decay on reheating and dark matter production
• Reheating and Dark Matter Freeze-in in the Higgs-$R^2$ Inflation Model
• Dark matter production and reheating via direct inflaton couplings: collective effects
• Gravitational SIMPs

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• Primordial Gravitational Waves as Probe of Dark Matter in Interferometer Missions: Fisher Forecast and MCMC
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• Unraveling particle dark matter with Physics-Informed Neural Networks
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