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Model of the Galaxy with Hot Dark Matter [PDF]

open access: goldOpen 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   +4 more sources

Indirect detection of hot dark matter

open access: diamondJournal 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   +4 more sources

Interacting hot dark matter [PDF]

open access: greenPhysical Review D, 1997
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

Hot QCD and warm dark matter [PDF]

open access: hybridProceedings of XXIVth International Symposium on Lattice Field Theory — PoS(LAT2006), 2006
One of the possible explanations for the dark matter needed in the standard cosmological model is so-called warm dark matter, in the form of right-handed ("sterile") neutrinos with a mass in the keV range. I describe how various properties of QCD at temperatures of a few hundred MeV play an important role in the theoretical computations that are needed
M. Laine
  +7 more sources

Hot and heavy dark matter from a weak scale phase transition [PDF]

open access: diamondSciPost Physics, 2023
We point out that dark matter which is produced non-adiabatically in a phase transition (PT) with fast bubble walls receives a boost in velocity which leads to long free-streaming lengths.
Iason Baldes, Yann Gouttenoire, Filippo Sala
doaj   +2 more sources

Dark matter as a heavy thermal hot relic [PDF]

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   +4 more sources

Cosmic strings with self-interacting hot dark matter [PDF]

open access: bronzeMonthly Notices of the Royal Astronomical Society, 1998
5 pages, 3ps figures, Latex, uses mn.sty, submitted to ...
P. P. Avelino, J. P. M. de Carvalho
openalex   +4 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   +4 more sources

Warm-plus-hot neutrino dark matter [PDF]

open access: greenPhysical Review D, 1995
We investigate a new hybrid-model universe containing two types of dark matter, one ``warm'' and the other ``hot.'' The hot component is an ordinary light neutrino with mass \ensuremath{\sim}25${\mathit{h}}^{2}$ eV while the warm component is a sterile neutrino with mass \ensuremath{\sim}700${\mathit{h}}^{2}$ eV.
Robert Malaney   +2 more
openalex   +4 more sources

Hidden Hot Dark Matter as Cold Dark Matter

open access: green, 2009
We show that hidden hot dark matter, hidden-sector dark matter with interactions that decouple when it is relativistic, is a viable dark matter candidate provided it has never been in thermal equilibrium with the particles of the standard model. This hidden hot dark matter may reheat to a lower temperature and number density than the visible Universe ...
Kris Sigurdson
openalex   +5 more sources

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