Lepton Asymmetry and Neutrino Oscillations Interplay

Understand

We discuss the interplay between lepton asymmetry L and neutrino oscillations in the early Universe.

• Neutrino oscillations may suppress or enhance previously existing L.
• On the other hand L is capable to suppress or enhance neutrino oscillations.
• The mechanism of L enhancement in MSW resonant neutrino oscillations in the early Universe is numerically analyzed.