Determination of neutrino mass texture for maximal CP violation Original Research Article

We show a general form of neutrino mass matrix image, whose matrix elements are denoted by image image as flavor neutrino masses, that induces maximal CP violation as well as maximal atmospheric neutrino mixing. The masses of image, image and image image turn out to be completely determined by image and image for given mixing angles. The appearance of CP violation is found to originate from the interference between the μ–τ symmetric part of M and its breaking part. If image, giving either image or image with a phase parameter θ, is further imposed, we find that image is also satisfied. These two constraints can be regarded as an extended version of the constraints in the μ–τ symmetric texture given by image and image. Majorana CP violation becomes active if image for image and if image for image.