Speaker
Description
We study maximal texture zeros of the Dirac matrix in a minimal inverse seesaw ISS (2,3) model with $S_4$ flavor symmetry. The seesaw model is extended with the addition of 2 Right Handed neutrinos and 3 sterile states in the intermediate-mass range. To make the model more predictive, we have considered the maximum possible texture zeros in Dirac neutrino mass matrix $M_D$, heavy right-handed (RH) neutrino mass matrix $M_R$, and sterile mass matrix $\mu$. There are six possible two zero textures of $M_D$ along with maximal zero textures of $M_R$ and $\mu$ that yield correct neutrino phenomenology. The decay of the light quasi-Dirac pair present in the model leads to lepton asymmetry. We study Leptogenesis in these six different textures for both normal and inverted ordering.
