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arXiv 2011.094852020-11hep-thastro-ph.COgr-qc

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

Anirudh Gundhi, Christian F. Steinwachs

备注：: 12 pages, 4 figures; V3: references added, typos corrected, discussion improved; published in EPJC
发表信息：: Eur. Phys. J. C 81, 460 (2021)
DOI：: 10.1140/epjc/s10052-021-09225-2

英文摘要：

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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