Results 231 to 240 of about 32,079 (250)

SINGLET NEUTRINOS AS HOT DARK MATTER

Modern Physics Letters A, 1993
A model is presented that generates mass and magnetic moment matrices for singlet neutrinos radiatively at one-loop level. It allows the singlet neutrinos to account for the hot dark matter and the anomalous ionization of interstellar hydrogen.
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Hot and Heavy Dark Matter from Supercooling

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. We find that this could be observed via the suppressed matter power spectrum for dark matter masses around $10^8 - 10^9$ GeV and energy scales of the PT around $10 ...
Baldes, Iason, Gouttenoire, Yann, Sala, Filippo   +2 more
openaire   +1 more source

EXPERIMENTS ON WIMPS, SIMPS, AND HOT DARK MATTER

International Journal of Modern Physics D, 1994
The particle which constitutes more than 90% of the mass of the universe is not one of those in the Standard Model of particle physics. The search for this dark matter particle has now eliminated or severely restricted many candidates. While accelerator-produced results and indirect searches have helped, the most extensive exclusions have come from ...
openaire   +1 more source

Neutrinoless Double Beta Decay — and Hot Dark Matter

2006
Nuclear double beta decay provides an extraordinarly broad potential to search for beyond-standard-model physics. The occurrence of the neutrinoless decay (0νββ) mode has fundamental consequences: first total lepton number is not conserved, and second, the neutrino is a Majorana particle.
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Breakdown of Chiral Perturbation Theory for the Axion Hot Dark Matter Bound

Physical Review Letters, 2021
Luca Di Luzio, G Martinelli, Gioacchino Piazza   +2 more
exaly  

Nonthermal hot dark matter from inflaton or moduli decay: Momentum distribution and relaxation of the cosmological mass bound

Physical Review D, 2021
Sukannya Bhattacharya, Subinoy Das, Koushik Dutta   +2 more
exaly  

Hot and Cold Dark Matter on Tap

Science, 1993
openaire   +2 more sources

Dark matter annihilation to neutrinos

Reviews of Modern Physics, 2021
CARLOS A Arguelles, Ali Kheirandish, Aaron C Vincent   +2 more
exaly  

Dark matter and gravitational waves from a dark big bang

Physical Review D, 2023
Katherine Freese, Martin Wolfgang Winkler   +1 more
exaly  

Diffusion of dark matter in a hot and dense nuclear environment

Physical Review D, 2016
Marina Cermeño, M A Pérez-García, Joseph Silk   +2 more
exaly