2 papers
hep-ph2026
Neutrino mixing and gravitational production via inflation
Oleg Lebedev, Jong-Hyun Yoon
We develop the Bogolyubov coefficient formalism for gravitational production of fermions with time-dependent mixing, which allows us to study a prototype neutrino system. The neutr…
hep-ph2026
Quark, lepton and right-handed neutrino production via inflation
Duarte Feiteira, Fotis Koutroulis, Oleg Lebedev +1
Inflationary expansion of space-time provides us with an efficient particle production mechanism in the Early Universe. The fermion production efficiency depends critically on the…