Effects of nonzero Majorana CP phases on oscillations of supernova neutrinos

Abstract

Abstract Following our paper [1], we study the effects of nonzero Dirac and Majorana CP violating phases on neutrino-antineutrino oscillations engendered by magnetic fields of astrophysical environments. We show that in the presence of strong magnetic fields and dense matter, nonzero CP phases can induce new resonances in neutrino-antineutrino oscillations, in particular in the channels ν e ↔ ν ¯ e , ν e ↔ ν ¯ μ and ν e ↔ ν ¯ τ . The discovered resonances can lead to appearance of potentially observable phenomena in neutrino oscillations accessible for observation in future experiments, such as JUNO and Hyper-Kamiokande.