Non-unitary leptonic flavor mixing and CP violation in neutrino-antineutrino oscillations

If massive neutrinos are Majorana particles, then the lepton number should be violated in nature and neutrino-antineutrino oscillations να↔ν‾β (for α,β=e,μ,τ) will definitely take place. In present paper, we study properties of CP violation with non-unitary leptonic flavor mixing matrix, which is actually a natural prediction canonical seesaw model due to between light heavy neutrinos. The oscillation probabilities P(να→ν‾β) P(ν‾α→νβ) derived, asymmetries Aαβ≡[P(να→ν‾β)−P(ν‾α→νβ)]/[P(να→ν‾β)+P(ν‾α→νβ)] also calculated. Taking into account current experimental bounds on unitarity violation, show that induced by parameters can significantly deviate from those limit unitary mixing.