Scalar dark matter candidates in a two inert Higgs doublet model. (9th September 2015)

• Record Type: Journal Article
• Authors: Fortes, E C F S; Machado, A C B; Montaño, J; Pleitez, V
• Is Part Of: Journal of physics. Volume 42:Number 10(2015:Oct.)
• Publication Date: 2015-09-09
• Subjects: dark matter -- inert doublets -- multi Higgs model; Nuclear physics -- Periodicals; Particles (Nuclear physics) -- Periodicals; Physique nucléaire -- Périodiques; Particules (Physique nucléaire) -- Périodiques; Kernfysica; Elementaire deeltjes; 539.7
• DOI: 10.1088/0954-3899/42/10/105003
• Languages: English
• ISSNs: 0954-3899

Abstract

Abstract: We study a two scalar inert doublet model (IDMS3 ) which is stabilized by an S 3 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.