Reopen parameter regions in two-Higgs doublet models
The stability of the electroweak potential is a very important constraint for models of new physics. At the moment, it is standard for Two-Higgs doublet models (THDM), singlet or triplet extensions of the standard model to perform these checks at tree-level. However, these models are often studied i...
Main Author: | |
---|---|
Format: | Article |
Language: | English |
Published: |
Elsevier
2018-01-01
|
Series: | Physics Letters B |
Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269317309577 |
id |
doaj-578bcc7b4300449d81828772912defe7 |
---|---|
record_format |
Article |
spelling |
doaj-578bcc7b4300449d81828772912defe72020-11-24T21:24:54ZengElsevierPhysics Letters B0370-26931873-24452018-01-01776C40741110.1016/j.physletb.2017.11.065Reopen parameter regions in two-Higgs doublet modelsFlorian Staub0Institute for Theoretical Physics (ITP), Karlsruhe Institute of Technology, Engesserstraße 7, D-76128 Karlsruhe, GermanyThe stability of the electroweak potential is a very important constraint for models of new physics. At the moment, it is standard for Two-Higgs doublet models (THDM), singlet or triplet extensions of the standard model to perform these checks at tree-level. However, these models are often studied in the presence of very large couplings. Therefore, it can be expected that radiative corrections to the potential are important. We study these effects at the example of the THDM type-II and find that loop corrections can revive more than 50% of the phenomenological viable points which are ruled out by the tree-level vacuum stability checks. Similar effects are expected for other extension of the standard model.http://www.sciencedirect.com/science/article/pii/S0370269317309577 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Florian Staub |
spellingShingle |
Florian Staub Reopen parameter regions in two-Higgs doublet models Physics Letters B |
author_facet |
Florian Staub |
author_sort |
Florian Staub |
title |
Reopen parameter regions in two-Higgs doublet models |
title_short |
Reopen parameter regions in two-Higgs doublet models |
title_full |
Reopen parameter regions in two-Higgs doublet models |
title_fullStr |
Reopen parameter regions in two-Higgs doublet models |
title_full_unstemmed |
Reopen parameter regions in two-Higgs doublet models |
title_sort |
reopen parameter regions in two-higgs doublet models |
publisher |
Elsevier |
series |
Physics Letters B |
issn |
0370-2693 1873-2445 |
publishDate |
2018-01-01 |
description |
The stability of the electroweak potential is a very important constraint for models of new physics. At the moment, it is standard for Two-Higgs doublet models (THDM), singlet or triplet extensions of the standard model to perform these checks at tree-level. However, these models are often studied in the presence of very large couplings. Therefore, it can be expected that radiative corrections to the potential are important. We study these effects at the example of the THDM type-II and find that loop corrections can revive more than 50% of the phenomenological viable points which are ruled out by the tree-level vacuum stability checks. Similar effects are expected for other extension of the standard model. |
url |
http://www.sciencedirect.com/science/article/pii/S0370269317309577 |
work_keys_str_mv |
AT florianstaub reopenparameterregionsintwohiggsdoubletmodels |
_version_ |
1725986223753789440 |