Probing Baryogenesis through the Higgs Self-Coupling
Abstract
The link between a modified Higgs self-coupling and the strong first-order phase transition necessary for baryogenesis is well explored for polynomial extensions of the Higgs potential. We broaden this argument beyond leading polynomial expansions of the Higgs potential to higher polynomial terms and to non-polynomial Higgs potentials. For our quantitative analysis we resort to the functional renormalization group, which allows us to evolve the full Higgs potential to higher scales and finite temperature. In all cases we find that a strong first-order phase transition manifests itself in an enhancement of the Higgs self-coupling by at least 50%, implying that such modified Higgs potentials should be accessible at the LHC.
Keywords
Cite
@article{arxiv.1711.00019,
title = {Probing Baryogenesis through the Higgs Self-Coupling},
author = {Manuel Reichert and Astrid Eichhorn and Holger Gies and Jan M. Pawlowski and Tilman Plehn and Michael M. Scherer},
journal= {arXiv preprint arXiv:1711.00019},
year = {2018}
}
Comments
24 pages, 11 figures; v2: minor changes, refs updated, matches journal version