Results 51 to 60 of about 88,834 (168)
Effective field theory and scalar triplet dark matter
Journal of High Energy PhysicsWe discuss an extension of the standard model with a real scalar triplet, T, including non-renormalizable operators (NROs) up to d = 6. If T is odd under a Z 2 symmetry, the neutral component of T is a good candidate for the dark matter (DM) of the ...
Carolina Arbeláez +4 more
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Multilepton signatures from dark matter at the LHC
Journal of High Energy Physics, 2022 Leptonic signatures of Dark Matter (DM) are one of the cleanest ways to discover such a secluded form of matter at high energy colliders. We explore the full parameter space relevant to multi-lepton (2- and 3-lepton) signatures at the Large Hadron ...
Alexander Belyaev +4 more
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Light in the shadows: primordial black holes making dark matter shine
Journal of High Energy PhysicsWe consider the possibility of indirect detection of dark sector processes by investigating a novel form of interaction between ambient dark matter (DM) and primordial black holes (PBHs). The basic scenario we envisage is that the ambient DM is “dormant”,
Kaustubh Agashe +6 more
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Enhancement of p-wave dark matter annihilation by quasi-bound states
Journal of High Energy PhysicsWe scrutinize the Sommerfeld enhancement in dark matter pair annihilation for p-wave and higher-ℓ partial waves. For the Yukawa potential these feature a super-resonant Breit-Wigner peak in their velocity-dependence close to Sommerfeld resonances as well
Martin Beneke +3 more
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The quintuplet annihilation spectrum
Journal of High Energy PhysicsWe extend the Effective Field Theory of Heavy Dark Matter to arbitrary odd representations of SU(2) and incorporate the effects of bound states. This formalism is then deployed to compute the gamma-ray spectrum for a 5 of SU(2): quintuplet dark matter ...
Matthew Baumgart +3 more
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Secluded dark matter in gauged B − L model
Journal of High Energy Physics, 2022 We consider the gauged B − L model which is extended with a secluded dark sector, comprising of two dark sector particles. In this framework the lightest Z $$ \mathcal{Z} $$ 2-odd particle is the dark matter candidate, having a feeble interaction with ...
Priyotosh Bandyopadhyay +4 more
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An Uniform Model for Dark Matter and Dark Energy
, 2021 In this paper, after reviewing some of the most important concepts about Dark Matter and methods of its registration, in particular by using SQUIDs, a toy uniform model for Dark Matter and Dark Energy is proposed. In the frame of the model Dark Matter particles is interpreted as an excitation of Dark Energy field.
openaire +2 more sources
Troubles mounting for multipolar dark matter
Journal of High Energy PhysicsIn this paper, we revisit the experimental constraints on the multipolar dark matter that has derivative coupling to the visible sector mediated by the Standard Model photon.
Debajit Bose +3 more
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Spherical collapse for unified dark matter models [PDF]
Physical Review D, 2014 7 pages, 12 ...
Caramês, Thiago R. P. +2 more
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The hMSSM with a light gaugino/higgsino sector: implications for collider and astroparticle physics
Journal of High Energy Physics, 2023 The hMSSM is a special parameterization of the minimal supersymmetric extension of the Standard Model (MSSM) in which the mass of the lightest Higgs boson is automatically set to the LHC measured value, M h =125 GeV, by adjusting the supersymmetric ...
Giorgio Arcadi +4 more
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