Scalar Multiplet Dark Matter in a Fast Expanding Universe: resurrection of the desert region

Abstract

We examine the impact of a faster expanding Universe on the phenomenology of scalar dark matter (DM) associated with $SU(2{)}_L$ multiplets. Earlier works with radiation dominated Universe have reported the presence of desert region for both inert $SU(2{)}_L$ doublet and triplet DM candidates where the DM is under abundant. We find that the existence of a faster expanding component before BBN can revive a substantial part of the desert parameter space consistent with relic density requirements and other direct and indirect search bounds. We also review the possible collider search prospects of the newly obtained parameter space and predict that such region might be probed at the future colliders with improved sensitivity via a disappearing/stable charged track.

17 pages, 10 figures, to appear in PRD

References in corpus (20)

• Improved Naturalness with a Heavy Higgs: An Alternative Road to LHC Physics
• Searching for Dark Matter Annihilation in Recently Discovered Milky Way Satellites with Fermi-LAT
• New Ekpyrotic Cosmology
• The First Three Seconds: a Review of Possible Expansion Histories of the Early Universe
• A new viable region of the inert doublet model
• Triplet Scalars and Dark Matter at the LHC
• Dilepton constraints in the Inert Doublet Model from Run 1 of the LHC
• Search for disappearing tracks in proton-proton collisions at sqrt(s) = 8 TeV
• Dark Matter in Inert Triplet Models
• A New Viable Region of Inert Higgs Doublet Dark Matter Model with Scotogenic Extension
• Collider and Dark Matter Searches in the Inert Doublet Model from Peccei-Quinn Symmetry
• Probing Dark Matter with Disappearing Tracks at the LHC
• Two Component Singlet-Triplet Scalar Dark Matter and Electroweak Vacuum Stability
• Non-thermal Dark Matter from Modified Early Matter Domination
• Constraining Inert Triplet Dark Matter by the LHC and FermiLAT
• Angular dependence of primordial trispectra and CMB spectral distortions
• Gauss-Bonnet braneworld cosmological effect on relic density of dark matter
• Gravitino dark matter from increased thermal relic particles
• Right-handed Neutrino Dark Matter, Neutrino Masses, and non-Standard Cosmology in a 2HDM
• Spectator dark matter in non-standard cosmologies

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• Long lived inert Higgs in fast expanding universe and its imprint on cosmic microwave background
• FIMP Dark Matter from Leptogenesis in Fast Expanding Universe
• WIMPy Leptogenesis in Non-Standard Cosmologies
• Is a Miracle-less WIMP Ruled Out?
• How Slowly can the Early Universe Expand?
• Dark Sector extensions of the Littlest Seesaw in the presence of Primordial Black Holes
• Reviewing the prospect of fermion triplets as dark matter and source of baryon asymmetry in non-standard cosmology
• Dark matter as the source of neutrino mass: theory overview and experimental prospects
• NSC++: Non-Standard Cosmologies in C++
• Two Component Doublet-Triplet Scalar Dark Matter stabilising the Electroweak vacuum
• Roads for Right-handed Neutrino Dark Matter: Fast Expansion, Standard Freeze-out, and Early Matter Domination