Dark matter in three-Higgs-doublet models with S3 symmetry
Sign Up to like & getrecommendations! Published in 2022 at "Journal of High Energy Physics"
DOI: 10.1007/jhep01(2022)120
Abstract: Models with two or more scalar doublets with discrete or global symmetries can have vacua with vanishing vacuum expectation values in the bases where symmetries are imposed. If a suitable symmetry stabilises such vacua, these… read more here.
Keywords: higgs doublet; dark matter; doublet models; three higgs ... See more keywords
Enhanced di-Higgs production in the two Higgs doublet model
Sign Up to like & getrecommendations! Published in 2019 at "Journal of High Energy Physics"
DOI: 10.1007/jhep02(2019)193
Abstract: A bstractWe show that the rate for di-Higgs production at the LHC can be enhanced by a factor as large as 25 compared to the Standard Model value in the two Higgs doublet model, while… read more here.
Keywords: higgs doublet; two higgs; doublet model; model ... See more keywords
Large Higgs-electron Yukawa coupling in 2HDM
Sign Up to like & getrecommendations! Published in 2017 at "Journal of High Energy Physics"
DOI: 10.1007/jhep04(2018)044
Abstract: A bstractThe present upper bound on κe, the ratio between the electron Yukawa coupling and its Standard Model value, is of O600$$ \mathcal{O}(600) $$. We ask what would be the implications in case that κe… read more here.
Keywords: yukawa coupling; large higgs; higgs electron; higgs doublet ... See more keywords
b → sℓ+ℓ− transitions in two-Higgs-doublet models
Sign Up to like & getrecommendations! Published in 2019 at "Journal of High Energy Physics"
DOI: 10.1007/jhep06(2019)119
Abstract: A bstractIn this article we study b → sμ+μ− transitions and possible correlations with the anomalous magnetic moment of the muon (aμ) within two-Higgs-doublet models with generic Yukawa couplings, including the possibility of right-handed neutrinos.… read more here.
Keywords: higgs doublet; two higgs; doublet models; physics ... See more keywords
Muon specific two-Higgs-doublet model
Sign Up to like & getrecommendations! Published in 2017 at "Journal of High Energy Physics"
DOI: 10.1007/jhep07(2017)012
Abstract: A bstractWe investigate a new type of a two-Higgs-doublet model as a solution of the muon g − 2 anomaly. We impose a softly-broken Z4 symmetry to forbid tree level flavor changing neutral currents in… read more here.
Keywords: doublet model; higgs doublet; specific two; two higgs ... See more keywords
CP violation from charged Higgs bosons in the three Higgs doublet model
Sign Up to like & getrecommendations! Published in 2021 at "Journal of High Energy Physics"
DOI: 10.1007/jhep07(2021)158
Abstract: Abstract We demonstrate a new type of cancellation of contributions to the electron and neutron electric dipole moments (EDMs) that occurs in three Higgs doublet models (3HDMs) when CP violation appears in the charged Higgs… read more here.
Keywords: higgs doublet; charged higgs; three higgs; violation ... See more keywords
Fitting the $$ Zb\overline{b} $$ vertex in the two-Higgs-doublet model and in the three-Higgs-doublet model
Sign Up to like & getrecommendations! Published in 2021 at "Journal of High Energy Physics"
DOI: 10.1007/jhep07(2021)195
Abstract: Abstract We investigate the new contributions to the parameters gL and gR of the $$ Zb\overline{b} $$ Zb b ¯ vertex in a multi-Higgs-doublet model (MHDM). We emphasize that those contributions generally worsen the fit… read more here.
Keywords: higgs doublet; fitting overline; vertex two; doublet model ... See more keywords
Non-Abelian strings and domain walls in two Higgs doublet models
Sign Up to like & getrecommendations! Published in 2018 at "Journal of High Energy Physics"
DOI: 10.1007/jhep08(2018)195
Abstract: A bstractContrary to the standard model that does not admit topologically nontrivial solitons, two Higgs doublet models admit topologically stable vortex strings and domain walls. We numerically confirm the existence of a topological Z-string confining… read more here.
Keywords: non abelian; higgs doublet; doublet models; two higgs ... See more keywords
Consistency of gauged two Higgs doublet model: gauge sector
Sign Up to like & getrecommendations! Published in 2019 at "Journal of High Energy Physics"
DOI: 10.1007/jhep09(2019)048
Abstract: Abstract We study the constraints on the new parameters in the gauge sector of gauged two Higgs doublet model using the electroweak precision test data collected from the Large Electron Positron Collider (LEP) at and… read more here.
Keywords: higgs doublet; two higgs; gauged two; doublet model ... See more keywords
A three Higgs doublet model with symmetry-suppressed flavour changing neutral currents
Sign Up to like & getrecommendations! Published in 2021 at "Journal of High Energy Physics"
DOI: 10.1007/jhep11(2021)079
Abstract: Abstract We construct a three-Higgs doublet model with a flavour non-universal U(1) × ℤ2 symmetry. That symmetry induces suppressed flavour-changing interactions mediated by neutral scalars. New scalars with masses below the TeV scale can still… read more here.
Keywords: higgs doublet; flavour changing; suppressed flavour; three higgs ... See more keywords
The three- and four-Higgs couplings in the general two-Higgs-doublet model
Sign Up to like & getrecommendations! Published in 2018 at "Journal of High Energy Physics"
DOI: 10.1007/jhep12(2018)004
Abstract: A bstractWe apply the unitarity bounds and the bounded-from-below (BFB) bounds to the most general scalar potential of the two-Higgs-doublet model (2HDM). We do this in the Higgs basis, i.e. in the basis for the… read more here.
Keywords: doublet model; higgs doublet; three four; doublet ... See more keywords