The Higgs Vacuum Uplifted: Revisiting the Electroweak Phase Transition with a Second Higgs Doublet
High Energy Physics - Phenomenology
2018-01-17 v1
Abstract
The existence of a second Higgs doublet in Nature could lead to a cosmological first order electroweak phase transition and explain the origin of the matter-antimatter asymmetry in the Universe. We explore the parameter space of such a two-Higgs-doublet-model and show that a first order electroweak phase transition strongly correlates with a significant uplifting of the Higgs vacuum w.r.t. its Standard Model value. We then obtain the spectrum and properties of the new scalars , and that signal such a phase transition, showing that the decay at the LHC and a sizable deviation in the Higgs self-coupling from its SM value are sensitive indicators of a strongly first order electroweak phase transition in the 2HDM.
Keywords
Cite
@article{arxiv.1705.09186,
title = {The Higgs Vacuum Uplifted: Revisiting the Electroweak Phase Transition with a Second Higgs Doublet},
author = {G. C. Dorsch and S. J. Huber and K. Mimasu and J. M. No},
journal= {arXiv preprint arXiv:1705.09186},
year = {2018}
}