Exotic Higgs boson decays and the electroweak phase transition

Jonathan Kozaczuk, Michael J. Ramsey-Musolf, Jessie Shelton

Research output: Contribution to journalArticlepeer-review


Light new physics weakly coupled to the Higgs can induce a strong first-order electroweak phase transition (EWPT). Here, we argue that scenarios in which the EWPT is driven first-order by a light scalar with mass between ∼10 GeV-mh/2 and small mixing with the Higgs will be conclusively probed by the high-luminosity LHC and future Higgs factories. Our arguments are based on analytic and numerical studies of the finite-temperature effective potential and provide a well-motivated target for exotic Higgs decay searches at the LHC and future lepton colliders.

Original languageEnglish (US)
Article number115035
JournalPhysical Review D
Issue number11
StatePublished - Jun 1 2020

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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