Texture zeroes and discrete flavor symmetries in light and heavy Majorana neutrino mass matrices: a bottom-up approach

Understand

Texture zeroes in neutrino mass matrix $M_\nu$ may give us hints about the symmetries involved in neutrino mass generation.

• We examine the viability of such texture zeroes in a model independent way through a bottom-up approach.
• Using constraints from the neutrino oscillation data, we develop an analytic framework that can identify these symmetries and quantify deviations from them.
• We analyze the textures of $M_\nu$ as well as those of $M_M$, the mass matrix of heavy Majorana neutrinos in the context of Type-I seesaw.