3 papers
hep-ph2025
Less structure on Mpc scales from decaying sterile neutrino dark matter
María Dias Astros, Lukáš Gráf, Stefan Vogl
Late decays of dark matter to a lighter, warm dark matter component are a known way to reduce the amplitude of the matter power spectrum on scales of Mpc. However, only very fe…
hep-ph2024
Freeze-in leptogenesis with sterile neutrino self-interactions
Maria Dias Astros, Stefan Vogl
Sterile neutrinos are a simple yet compelling addition to the Standard Model. For right-handed neutrinos with masses below the electroweak scale, leptogenesis can proceed through C…
hep-ph2024
Heating the dark matter halo with dark radiation from supernovae
Stefan Vogl, Xun-Jie Xu
Supernova explosions are among the most extreme events in the Universe, making them a promising environment in which to search for the effects of light, weakly coupled new particle…