54 citations · 271 across the 16 of their papers we have counts for
3 papers · 1 filter
Frozen-in fermionic singlet dark matter in non-standard cosmology with a decaying fluid
Paola Arias, Dimitrios Karamitros, Leszek Roszkowski
We perform a detailed study of dark matter production via freeze-in under the assumption that some fluid dominates the early Universe before depositing its energy to the plasma cau…
Forbidden Freeze-In
Luc Darmé, Andrzej Hryczuk, Dimitrios Karamitros +1
We study the importance of a frozen-in dark matter production regime, where the dark matter particle is produced via kinematically forbidden decays that arise from significant ther…
Neutrino dark matter and the Higgs portal: improved freeze-in analysis
Valentina De Romeri, Dimitrios Karamitros, Oleg Lebedev +1
Sterile neutrinos are one of the leading dark matter candidates. Their masses may originate from a vacuum expectation value of a scalar field. If the sterile neutrino couplings are…