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Model of the Galaxy with Hot Dark Matter

open access: yesOpen Astronomy, 2018
The model of the galaxy is considered as a structure of the baryonic matter embedded into the hot dark matter. The dark matter is supposed to come into being from the decaying matter after the epoch of structure formation.
Khokhlov Dmitri L.
doaj   +3 more sources

Dark matter as a heavy thermal hot relic

open access: yesPhysics Letters B, 2020
If, during the early Universe epoch, the dark matter particle thermalizes in a hidden sector which does not thermalize with the Standard Model thermal bath, its relativistic thermal decoupling can easily lead to the observed relic density, even if the ...
Thomas Hambye   +2 more
doaj   +3 more sources

Hot new early dark energy: Towards a unified dark sector of neutrinos, dark energy and dark matter

open access: yesPhysics Letters B, 2022
Hot new early dark energy describes a supercooled, first-order phase transition that takes place at sub-eV temperatures in the dark sector. It lowers the sound horizon, which provides a possible solution to the Hubble tension, and, at the same time, it ...
Florian Niedermann, Martin S. Sloth
doaj   +3 more sources

A model for mixed warm and hot right-handed neutrino dark matter

open access: yesJournal of High Energy Physics, 2021
We discuss a model where a mixed warm and hot keV neutrino dark matter rises naturally. We arrange active and sterile neutrinos in the same SU(3) L multiplet, with the lightest sterile neutrino being dark matter.
Maíra Dutra   +3 more
doaj   +2 more sources

Biodiversity and emerging infectious threats: the microbial dark matter of Southwest China [PDF]

open access: yesFrontiers in Microbiology
Southwest China is a global biodiversity hotspot, and its complex and diverse ecosystems harbor vast amounts of “microbial dark matter.” This paper systematically examines the distribution characteristics of microbial dark matter in hosts such as ...
Nan Guo   +7 more
doaj   +2 more sources

Indirect detection of hot dark matter

open access: yesJournal of High Energy Physics
Cosmologically stable, light particles that came into thermal contact with the Standard Model in the early universe may persist today as a form of hot dark matter.
Jeff A. Dror   +3 more
doaj   +2 more sources

THE HOT DARK MATTER MODEL: FURTHER INVESTIGATION

open access: yesOdessa Astronomical Publications, 2020
e outer region with the dominant hot dark matter (the parabolic orbit of the test particle). It was assumed that the hot dark matter consists of hypothetical Planck neutrinos arising in the decay of the protons at the Planck scale.
D. L. Khokhlov
doaj   +1 more source

Thermal production of cold “hot dark matter” around eV

open access: yesJournal of High Energy Physics, 2023
A very simple production mechanism of feebly interacting dark matter (DM) that rarely annihilates is thermal production, which predicts the DM mass around eV. This has been widely known as the hot DM scenario.
Wen Yin
doaj   +1 more source

Sensitivity projections for a dual-phase argon TPC optimized for light dark matter searches through the ionization channel

open access: yes, 2023
Dark matter lighter than 10 GeV=c2 encompasses a promising range of candidates. A conceptual design for a new detector, DarkSide-LowMass, is presented, based on the DarkSide-50 detector and progress toward DarkSide-20k, optimized for a low-threshold ...
G. Paternoster   +2 more
core   +1 more source

Shining light on the scotogenic model: interplay of colliders and cosmology

open access: yesJournal of High Energy Physics, 2020
In the framework of the scotogenic model, which features radiative generation of neutrino masses, we explore light dark matter scenario. Throughout the paper we chiefly focus on keV-scale dark matter which can be produced either via freeze-in through the
Sven Baumholzer   +3 more
doaj   +1 more source

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