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Novel constraints on the particle nature of dark matter from stellar streams [PDF]
Journal of Cosmology and Astroparticle Physics, 2021 Tidal streams are highly sensitive to perturbations from passing dark matter (DM) subhalos and thus provide a means of measuring their abundance. In a recent paper, we analyzed the distribution of stars along the GD-1 stream with a combination of data from the Gaia satellite and the Pan-STARRS survey, and we demonstrated that the population of DM ...
Banik, N. +4 more
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Constraints on nature of ultra light dark matter particles with 21cm forest [PDF]
Physical Review D, 2019 13 pages, 9 figures.
Shimabukuro, Hayato +2 more
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Probing the nature of dark matter particles with stellar streams [PDF]
Journal of Cosmology and Astroparticle Physics, 2018 23 pages, 11 figures, JCAP accepted ...
Banik, N. +3 more
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Journal of High Energy Physics, 2022 The search for a Dark Matter particle is the new grail and hard-sought nirvana of the particle physics community. From the theoretical side, it is the main challenge to provide a consistent and model-independent tool for comparing the bounds and reach of
Alexander Belyaev +3 more
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Two natural scenarios for dark matter particles coexisting with supersymmetry [PDF]
Modern Physics Letters A, 2019 We describe two natural scenarios in which both dark matter, weakly interacting massive particles (WIMPs) and a variety of supersymmetric partners should be discovered in the foreseeable future. In the first scenario, the WIMPs are neutralinos, but they are only one component of the dark matter, which is dominantly composed of other relic particles ...
Throm, Maxwell +5 more
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Asymmetries in extended dark sectors: a cogenesis scenario
Journal of High Energy Physics, 2023 The observed dark matter relic abundance may be explained by different mechanisms, such as thermal freeze-out/freeze-in, with one or more symmetric/asymmetric components. In this work we investigate the role played by asymmetries in determining the yield
Juan Herrero-García +2 more
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The Z 7 model of three-component scalar dark matter
Journal of High Energy Physics, 2023 We investigate, for the first time, a scenario where the dark matter consists of three complex scalar fields that are stabilized by a single Z 7 symmetry.
Geneviève Bélanger +3 more
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Journal of High Energy Physics, 2023 We generalize the recently proposed continuum dark matter model to the case where the dark matter consists of a spin-1/2 or spin-1 gapped continuum. We construct simple continuum analogs of weakly interacting massive particles annihilating through the Z ...
Csaba Csáki, Ameen Ismail, Seung J. Lee
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Unraveling the Scotogenic model at muon collider
Journal of High Energy Physics, 2022 The Scotogenic model extends the standard model with three singlet fermion N i and one inert doublet scalar η to address the common origin of tiny neutrino mass and dark matter. For fermion dark matter N 1, a hierarchical Yukawa structure ∣ y 1 e ∣ ≪ ∣ y
Jiao Liu +3 more
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Gamma-ray lines may reveal the CP nature of the dark matter particle [PDF]
Journal of Cosmology and Astroparticle Physics, 2019 Determining the fundamental properties of the dark matter is one of the most important open problems in particle physics today. If the dark matter particle has spin zero, one of these properties is its CP nature. That is, whether it is CP-even (scalar), CP-odd (pseudoscalar), or if its interactions violate CP.
Queiroz, Farinaldo S., Yaguna, Carlos E.
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