3 papers
hep-ph2022
lepton number survival in the cosmic neutrino background
Oleg Ruchayskiy, Vsevolod Syvolap, Robin Wursch
The Hot Big Bang model predicts the existence of a \emph{cosmic neutrino background}. The number of particles and anti-particles in this primordial bath of neutrinos can be differe…
hep-ph2021
When FIMPs Decay into Neutrinos: The Story
Alexey Boyarsky, Maksym Ovchynnikov, Nashwan Sabti +1
The existence of feebly interacting massive particles (FIMPs) could have significant implications on the effective number of relativistic species in the early Univ…
hep-ph2021
An allowed window for heavy neutral leptons below the kaon mass
Kyrylo Bondarenko, Alexey Boyarsky, Juraj Klaric +4
The extension of the Standard Model with two gauge-singlet Majorana fermions can simultaneously explain two beyond-the-Standard-model phenomena: neutrino masses and oscillations, a…