Scalar dark matter candidates in a two inert Higgs doublet model

We study a two scalar inert doublet model (IDMS3) which is stabilized by an S3 symmetry considering two scenarios: (a) two of the scalars in each charged sector are mass degenerated due to a residual symmetry, (b) there is no mass degeneracy because of the introduction of soft terms that break the s...

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Bibliographic Details
Published in:Journal of physics. G, Nuclear and particle physics Nuclear and particle physics, 2015-10, Vol.42 (10), p.105003-11
Main Authors: Fortes, E C F S, Machado, A C B, Montaño, J, Pleitez, V
Format: Article
Language:English
Subjects:
Breaking
Charging
Dark matter
Inert
inert doublets
multi Higgs model
Particle physics
Scalars
Symmetry
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Summary:We study a two scalar inert doublet model (IDMS3) which is stabilized by an S3 symmetry considering two scenarios: (a) two of the scalars in each charged sector are mass degenerated due to a residual symmetry, (b) there is no mass degeneracy because of the introduction of soft terms that break the symmetry. A major difference between this model and the one with only one inert Higgs doublet (IDM) is that it has twice the number of possible dark matter (DM) candidates. In particular we show that for the case (a) it is possible to have two CP even DM candidates. Besides, in case (b) the upper limit to the intermediate mass region for the one IDM in our model is larger, once we obtain a DM candidate with mass equals to 257 GeV.
ISSN:0954-3899
1361-6471
DOI:10.1088/0954-3899/42/10/105003