The inert doublet model: an archetype for dark matter
نویسندگان
چکیده
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...
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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...
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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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We examine the ‘singlet majoron model’ first introduced by Chikashige, Mohapatra and Peccei as a simple extension of the standard model with massive Majorana neutrinos. We can explain both the solar and the atmospheric neutrino deficits by the oscillations between electroweak doublet and singlet neutrinos without flavor mixing. Furthermore, while some light neutrinos can be the hot dark matter,...
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ژورنال
عنوان ژورنال: Journal of Cosmology and Astroparticle Physics
سال: 2007
ISSN: 1475-7516
DOI: 10.1088/1475-7516/2007/02/028