Reheating the Standard Model from a hidden sector

Abstract

We consider a scenario where the inflaton decays to a hidden sector thermally decoupled from the visible Standard Model sector. A tiny portal coupling between the hidden and the visible sectors later heats the visible sector so that the Standard Model degrees of freedom come to dominate the energy density of the Universe before Big Bang Nucleosynthesis. We find that this scenario is viable, although obtaining the correct dark matter abundance and retaining successful Big Bang Nucleosynthesis is not obvious. We also show that the isocurvature perturbations constituted by a primordial Higgs condensate are not problematic for the viability of the scenario.

8 pages, 3 figures. minor changes to match the published version

References in corpus (14)

• The Standard Model Higgs boson as the inflaton
• Gauge Singlet Scalars as Cold Dark Matter
• Spacetime curvature and the Higgs stability during inflation
• Singlet fermionic dark matter
• Electroweak Vacuum Stability in light of BICEP2
• Chilly Dark Sectors and Asymmetric Reheating
• Probable or Improbable Universe? Correlating Electroweak Vacuum Instability with the Scale of Inflation
• Strong phase transition, dark matter and vacuum stability from simple hidden sectors
• Postinflationary Higgs relaxation and the origin of matter-antimatter asymmetry
• WIMP and SIMP Dark Matter from the Spontaneous Breaking of a Global Group
• Self-Interacting Dark Matter through the Higgs Portal
• Standard Model with a real singlet scalar and inflation
• Gravitational waves from first order phase transitions as a probe of an early matter domination era and its inverse problem
• Non-Abelian dynamics in the resonant decay of the Higgs after inflation

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• Primordial Gravitational Waves in Nonstandard Cosmologies
• Hidden Inflaton Dark Matter
• Scalar singlet dark matter in non-standard cosmologies
• Spectator Dark Matter
• Phenomenology of Self-Interacting Dark Matter in a Matter-Dominated Universe
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• Reviving $Z$ and Higgs Mediated Dark Matter Models in Matter Dominated Freeze-out
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• The Inflaton Portal to a Highly decoupled EeV Dark Matter Particle
• Categorisation and Detection of Dark Matter Candidates from String/M-theory Hidden Sectors
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• Constraining Nonthermal Dark Matter's Impact on the Matter Power Spectrum
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• Quasidecoupled state for dark matter in nonstandard thermal histories
• Dark matter as a heavy thermal hot relic
• Concealing Dirac neutrinos from cosmic microwave background
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• Long lived inert Higgs in fast expanding universe and its imprint on cosmic microwave background
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• Dark Matter from Dark Glueball Dominance
• Spectator dark matter in non-standard cosmologies
• Thermal Relic of Self-Interacting Dark Matter with Retarded Decay of Mediator
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• WIMP dark matter in bulk viscous non-standard cosmologies
• Cosmological implications of inflaton-mediated dark and visible matter scatterings after reheating
• Thermal evolution of dark matter and gravitational-wave production in the early universe from a symplectic glueball model
• Light Thermal Self-Interacting Dark Matter in the Shadow of Non-Standard Cosmology
• The Stochastic Gravitational Wave Background from Primordial Gravitational Atoms
• Producing and constraining self-interacting hidden sector dark matter
• Fingerprints of freeze-in dark matter in an early matter-dominated era