Higgs chameleon
Abstract
The existing constraints from particle colliders reveal a suspicious but nonlethal metastability for our current electroweak vacuum of Higgs potential in the standard model of particle physics, which is, however, disfavored in the early Universe if the inflationary Hubble scale is larger than the instability scale when Higgs quartic self-coupling runs into negative value. Alternative to previous trials of acquiring a positive effective mass-squared from Higgs quadratic couplings to Ricci scalar or inflaton field, we propose a third approach to stabilize the Higgs potential in the early Universe by regarding Higgs as chameleon coupled to inflaton alone without conflicting to the present constraints on either Higgs or chameleon.
Cite
@article{arxiv.2005.12885,
title = {Higgs chameleon},
author = {Rong-Gen Cai and Shao-Jiang Wang},
journal= {arXiv preprint arXiv:2005.12885},
year = {2021}
}
Comments
v1, 5 pages+references, 1 figure; v2, 6 pages+references, 1 figure, added subsection on UV effectiveness, accepted by Phys. Rev. D; v3, to match the published version