English

Natural Stabilization of the Higgs Boson's Mass and Alignment

High Energy Physics - Phenomenology 2019-03-27 v2 High Energy Physics - Experiment

Abstract

Current data from the LHC indicate that the 125 GeV Higgs boson, HH, is either the single Higgs of the Standard Model or, to a good approximation, an "aligned Higgs". We propose that HH is the pseudo-Goldstone dilaton of Gildener and Weinberg. Models based on their mechanism of scale symmetry breaking can naturally account for the Higgs boson's low mass and aligned couplings. We conjecture that they are the only way to achieve a "Higgslike dilaton" that is actually the Higgs boson. These models further imply the existence of additional Higgs bosons in the vicinity of 200 to about 550 GeV. We illustrate our proposal in a version of the two-Higgs-doublet model of Lee and Pilaftsis. Our version of this model is consistent with published precision electroweak and collider physics data. We describe tests to confirm, or exclude, this model at Run 3 of the LHC.

Keywords

Cite

@article{arxiv.1808.07927,
  title  = {Natural Stabilization of the Higgs Boson's Mass and Alignment},
  author = {Kenneth Lane and William Shepherd},
  journal= {arXiv preprint arXiv:1808.07927},
  year   = {2019}
}

Comments

Abstract and Section 1 modified, very minor changes in other sections. Discussion of model, analytic and numerical results are unchanged. 35 pages, 10 figures