منابع مشابه
Dark Matter with Topological Defects in the Inert Doublet Model
We examine the production of dark matter by decaying topological defects in the high mass region mDM mW of the Inert Doublet Model, extended with an extra U(1) gauge symmetry. The density of dark matter states (the neutral Higgs states of the inert doublet) is determined by the interplay of the freeze-out mechanism and the additional production of dark matter states from the decays of topologic...
متن کاملNeutrinos from Inert Doublet Dark Matter
We investigate the signatures of neutrinos produced in the annihilation of WIMP dark matter in the Earth, the Sun and at the Galactic centre within the framework of the Inert Doublet Model and extensions. To accommodate the WMAP constraints, the dark matter candidate, which is one of the neutral components of an extra Higgs doublet, must have a mass in either one of three distinct mass ranges: ...
متن کاملLow Energy Gamma Ray Excess Confronting a Singlet Scalar Extended Inert Doublet Dark Matter Model
Recent study of gamma rays originating from the region of galactic centre has confirmed an anomalous γ-ray excess within the energy range 1-3 GeV. This can be explained as the consequence of pair annihilation of a 31-40 GeV dark matter into bb̄ with thermal annihilation cross-section σv ∼ 1.4 − 2.0 × 10−26 cm/s. In this work we revisit the Inert Doublet Model (IDM) in order to explain this gamma...
متن کاملConstraints on the two-Higgs-doublet model
The two-Higgs-doublet model provides a simple, yet interesting, generalization of the SM Higgs sector. We study the CP-conserving version of this model with general, flavor-diagonal, Yukawa couplings. Indirect constraints are obtained from flavor physics on the charged Higgs boson mass and couplings. The relation of these bounds to those for the more specialized two-Higgsdoublet model types wit...
متن کاملInert Doublet Dark Matter with an additional scalar singlet and 125 GeV Higgs Boson
In this work we consider a model for particle dark matter where an extra inert Higgs doublet and an additional scalar singlet is added to the Standard Model (SM) Lagrangian. The dark matter candidate is obtained from only the inert doublet. The stability of this one component dark matter is ensured by imposing a Z2 symmetry on this additional inert doublet. The additional singlet scalar has a v...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2016
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.93.035020