More mixing angles appear naturally when considering the spin-flip of a neutrino caused by an external magnetic field. For example, when considering neutrino oscillation (in matter) with two flavors, one mixing angle is sufficient to explain the oscillation, but if the oscillation includes both spins and flavors, six mixing angles are required. In this study, we discuss how several of mixing angles can be obtained in the spin-flavor oscillation of Majorana neutrinos and introduce a general method for this task. We also briefly discuss how to calculate the survival and transition probabilities of Majorana neutrinos using the obtained mixing angles.

Keywords: Mixing angles, Spin-Flavor Oscillation, Majorana Neutrino, Magnetic Field, Spin-flip