Singlet scalar and 2HDM extensions of the Standard Model: CP-violation and constraints from (g − 2)μ and eEDM
Sign Up to like & getrecommendations! Published in 2017 at "Journal of High Energy Physics"
DOI: 10.1007/jhep09(2018)059
Abstract: A bstractWe study popular scalar extensions of the Standard Model, namely the singlet extension, the 2-Higgs doublet model (2HDM) and its extension by a singlet scalar. We focus on the contributions of the added scalars… read more here.
Keywords: moment; standard model; violation; singlet scalar ... See more keywords
The FIMP-WIMP dark matter in the extended singlet scalar model
Sign Up to like & getrecommendations! Published in 2022 at "Nuclear Physics B"
DOI: 10.1016/j.nuclphysb.2022.115677
Abstract: We explore the simplest viable dark matter model with a real singlet scalar, vector-like singlet and doublet fermions. The Yukawa couplings associated with the fermion sector play a crucial role in getting the current relic… read more here.
Keywords: singlet scalar; matter; dark matter; model ... See more keywords
Machine learning-enhanced search for a vectorlike singlet B quark decaying to a singlet scalar or pseudoscalar
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DOI: 10.1103/physrevd.107.115001
Abstract: The presence of a new decay mode relaxes the current mass exclusion limits on vectorlike quarks considerably. We consider the case of a weak-singlet vectorlike $B$ quark that can decay to a singlet scalar or… read more here.
Keywords: scalar pseudoscalar; singlet scalar; quark; phi ... See more keywords
Electroweak vacuum stability in presence of singlet scalar dark matter in TeV scale seesaw models
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DOI: 10.1103/physrevd.96.055020
Abstract: We consider singlet extensions of the standard model, both in the fermion and the scalar sector, to account for the generation of neutrino mass at the TeV scale and the existence of dark matter respectively.… read more here.
Keywords: dark matter; electroweak vacuum; singlet scalar; singlet ... See more keywords