The Higgs vacuum uplifted: revisiting the electroweak phase transition with a second Higgs doublet

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dc.creatorGláuber Carvalho Dorsch
dc.creatorStephan J. Huber
dc.creatorKen Mimasu
dc.creatorJose Miguel No Redondo
dc.date.accessioned2023-10-30T13:04:30Z
dc.date.accessioned2025-09-08T23:31:51Z
dc.date.available2023-10-30T13:04:30Z
dc.date.issued2017
dc.format.mimetypepdf
dc.identifier.doihttps://doi.org/10.1007/JHEP12(2017)086
dc.identifier.issn10298479
dc.identifier.urihttps://hdl.handle.net/1843/60215
dc.languageeng
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofJournal of High Energy Physics
dc.rightsAcesso Restrito
dc.subjectTransições de fases
dc.subjectVácuo
dc.subject.otherBeyond standard model
dc.subject.otherCosmology
dc.subject.otherHiggs physics
dc.titleThe Higgs vacuum uplifted: revisiting the electroweak phase transition with a second Higgs doublet
dc.typeArtigo de periódico
local.citation.epage31
local.citation.issue12
local.citation.spage1
local.citation.volume2017
local.description.resumoThe 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 H0, A0 and H± that signal such a phase transition, showing that the decay A0 H0Z at the LHC and a sizable deviation in the Higgs self-coupling λhhh from its SM value are sensitive indicators of a strongly first order electroweak phase transition in the 2HDM.
local.identifier.orcidhttps://orcid.org/0000-0001-9976-8113
local.identifier.orcidhttps://orcid.org/0000-0002-1321-8960
local.publisher.countryBrasil
local.publisher.departmentICX - DEPARTAMENTO DE FÍSICA
local.publisher.initialsUFMG
local.url.externahttps://link.springer.com/article/10.1007/JHEP12(2017)086

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