Results 1 to 10 of about 30,944 (304)
Indirect detection of hot dark matter [PDF]
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 +4 more sources
Hot new early dark energy: Towards a unified dark sector of neutrinos, dark energy and dark matter
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 +2 more sources
A model for mixed warm and hot right-handed neutrino dark matter [PDF]
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
Interacting hot dark matter [PDF]
We discuss the viability of a light particle ($\sim 30$ eV neutrino) with strong self-interactions as a dark matter candidate. The interaction prevents the neutrinos from free-streaming during the radiation dominated regime so galaxy sized density perturbations can survive. Smaller scale perturbations are damped due to neutrino diffusion.
F. Atrio‐Barandela, Sacha Davidson
openalex +4 more sources
Cosmic strings with self-interacting hot dark matter [PDF]
5 pages, 3ps figures, Latex, uses mn.sty, submitted to ...
P. P. Avelino, J. P. M. de Carvalho
openalex +3 more sources
Thermal production of cold “hot dark matter” around eV
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 +4 more sources
Majorana neutrinos as the dark matters in the cold plus hot dark matter model [PDF]
A simple model of the Majorana neutrino with the see-saw mechanism is studied, assuming that two light neutrinos are the hot dark matters with equal mass of 2.4 eV in the cold plus hot dark matter model of cosmology. We find that the heavy neutrino, which is the see-saw partner with the remaining one light neutrino, can be the cold dark matter, if the ...
Noriaki Kitazawa +2 more
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THE HOT DARK MATTER MODEL: FURTHER INVESTIGATION
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 +3 more sources
Hot leptogenesis from thermal Dark Matter [PDF]
29 pages, 11 figures.
Nicolás Bernal, Chee Sheng Fong
openalex +4 more sources
Dark matter as a heavy thermal hot relic
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 +2 more sources

