Ramanujan Auditorium

Fast Neutrino Oscillations: Beginning and End

Basudeb Dasgupta

Tata Institute of Fundamental Research

I will discuss fast flavor oscillations - a novel kind of neutrino
oscillation that becomes possible if the neutrino density is large, as may
happen inside supernovae, in neutron star mergers, and in the early
universe. I will first discuss a condition that must be fulfilled for such
oscillations to start. Then I will discuss what is the possible end result
of these rapid flavor oscillations occurring over less than a centimetre,
including their possible impact on stars and element creation.