Speaker
Description
In this work, we have incorporated $A_4$ modular symmetry into the left-right symmetric inverse seesaw model. By restricting the proliferation of flavon fields, such modular symmetry can improve the predictability of the model. In this scenario, two right-handed neutrinos and three sterile fermions are added to the standard model, resulting in three light active neutrino states and a light sterile state with a mass in the keV range. The scalar sector consists of Higgs doublets and bidoublets. Here, we numerically investigate different Yukawa coupling coefficients, neutrino masses, and mixing parameters. The predictions of the model are consistent with the current neutrino oscillation data at the $3\sigma$ range. We have also studied the non-unitarity of the mixing matrix for the lepton flavor violation and the baryon asymmetry of the universe through leptogenesis.