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arXiv · 2011.09485

Scalaron-Higgs inflation reloaded: Higgs-dependent scalaron mass and primordial black hole dark matter

Anirudh Gundhi·Christian F. Steinwachs
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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.

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Anirudh Gundhi, Christian F. Steinwachs. 2021-05-29. Scalaron-Higgs inflation reloaded: Higgs-dependent scalaron mass and primordial black hole dark matter. https://doi.org/10.1140/epjc%2Fs10052-021-09225-2

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