Investigating Leptonic CP Invariance using Weak Basis Invariants in Hybrid Textures of Majorana Neutrino Mass Matrix
In the present paper, I have derived the CP odd weak basis invariants (WB) at low energies, for Majorana neutrino mass matrix with two zeros and an equality between arbitrary non-zero elements, also known as hybrid textures in the basis, where charged lepton mass matrix is diagonal. This particular conjecture of neutrino mass matrix is found to be compatible with the experimental data, as shown by S. Dev and D. Raj in their recent work. The analysis attempts to find the necessary and sufficient condition for CP invariance corresponding to each viable possibility of hybrid texture, along with some important implications.
