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arXiv · 1810.06445

Electroweak relaxation of cosmological hierarchy

Shao-Jiang Wang
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Abstract

A simple model for the late-time cosmic acceleration problem is presented in the Starobinsky inflation with a negative bare cosmological constant as well as a nonminimal coupling to the Higgs boson. After electroweak symmetry breaking, the Starobinsky inflaton has been frozen until very recently, becoming a thawing quintessence, and a comparable magnitude to the observed dark energy density can be achieved without fine-tuning. Our proposal essentially reduces the cosmological constant problem into the electroweak hierarchy problem, and its late-time behaviour is also consistent with the recently proposed swampland criteria.

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Shao-Jiang Wang. 2018-10-15. Electroweak relaxation of cosmological hierarchy. https://doi.org/10.1103/physrevd.99.023529

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