Scalaron–Higgs inflation reloaded: Higgs-dependent scalaron mass and primordial black hole dark matter
Anirudh Gundhi, Christian F. Steinwachs
Abstract
Abstract We propose an extension of the scalaron-Higgs model by a non-minimal coupling of the Standard Model Higgs boson to the quadratic Ricci scalar resulting in a Higgs-dependent scalaron mass. The model predicts a successful stage of effective single-field Starobinsky inflation. It features a multi-field amplification mechanism leading to a peak in the inflationary power spectrum at small wavelengths which enhances the production of primordial black holes. The extended scalaron-Higgs model unifies inflationary cosmology with elementary particle physics and explains the origin of cold dark matter in terms of primordial black holes without assuming any new particles.
Topics & Concepts
PhysicsPrimordial black holeInflation (cosmology)Dark matterParticle physicsCosmologyHiggs bosonStandard Model (mathematical formulation)Theoretical physicsf(R) gravityCoupling (piping)Black hole (networking)AstrophysicsBosonCold dark matterScalar (mathematics)Quadratic equationPhysics beyond the Standard ModelAxionExtra dimensionsScalar fieldSpectral densityMathematical physicsSlow rollCosmic microwave backgroundEinsteinPlanckDark energyScalar bosonDark fluidHot dark matterNeutrinoUniverseScalar field dark matterCosmological modelCosmology and Gravitation TheoriesParticle physics theoretical and experimental studiesDark Matter and Cosmic Phenomena