Nonstandard neutrino-neutrino refractive effects in dense neutrino gases
Nonstandard neutrino-neutrino refractive effects in dense neutrino gases
We investigate the effects of nonstandard four-fermion neutrino-neutrino interactions on the flavor evolution of dense neutrino gases. We find that in the regions where the neutrino-neutrino refractive index leads to collective flavor oscillations, the presence of new neutrino interactions can produce flavor equilibration in both normal and inverted neutrino mass …