Neutrino masses, the $\mu$-term and ${\mathcal{P}\mathcal{SL}}_2(7)$

Gaoli Chen, M. Jay Pérez, Pierre Ramond

Using an $SO(10)$-inspired form for the Dirac neutrino mass, we map the neutrino data to right-handed neutrino Majorana mass-matrix, $\mathcal{M}$, and investigate a special form wi…