Probing baryogenesis through the Higgs boson self-coupling

M. Reichert, A. Eichhorn, H. Gies, J.M. Pawlowski, T. Plehn, M.M. Scherer

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review


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 nonpolynomial 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.

TidsskriftPhysical Review D
Udgave nummer7
StatusUdgivet - 2018
Udgivet eksterntJa


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