Minimal conformal extensions of the Higgs sector
Abstract
In this work we find the minimal extension of the Standard Model's Higgs sector which can lead to a light Higgs boson via radiative symmetry breaking and is consistent with the phenomenological requirements for a low-energy realization of a conformal theory. The model which turns out to be stable under renormalization group translations is an extension of the Standard Model by two scalar fields, one of which acquires a finite vacuum expectation value and therefore mixes into the physical Higgs. We find that the minimal model predicts a sizable amount of mixing which makes it testable at a collider. In addition to the physical Higgs, the theory's scalar spectrum contains one light and one heavy boson. The heavy scalar's properties render it a potential dark matter candidate.
Keywords
Cite
@article{arxiv.1603.03603,
title = {Minimal conformal extensions of the Higgs sector},
author = {Alexander J. Helmboldt and Pascal Humbert and Manfred Lindner and Juri Smirnov},
journal= {arXiv preprint arXiv:1603.03603},
year = {2017}
}
Comments
18 pages, 9 figures. Added section on "Embedding into semiclassical gravity", main results remain unchanged, version published in JHEP