Comparing Trimaximal Mixing and Its Variants with Deviations from Tri-bimaximal Mixing

Understand

We analyze in detail the predictions of "trimaximal" neutrino mixing, which is defined by a mixing matrix with identical second column elements.

• This column is therefore identical to the second column in the case of tri-bimaximal mixing.
• We also generalize trimaximal mixing by assuming that the other rows and columns of the mixing matrix individually have the same forms as for tri-bimaximal mixing.
• The phenomenology of these new mixing scenarios is studied.