Neutrino masses and mixing in an inverse seesaw (2,3) model augmented with S ₄ modular flavor symmetry

Department of Physics, Cotton University, Guwahati- 781001, Assam, India

^* e-mail: phy2091007_raktima@cottonuniversity.ac.in
^** e-mail: mahadevpatgiri@cottonuniversity.ac.in

Published online: 20 November 2024

Abstract

In our work, we constructed an inverse seesaw(2,3) model using the modular invariance approach. The predictability of the model is enhanced and the number of flavon fields reduced by using this modular invariance approach. Here, we have used the S ₄ modular group to assist us design the model. Within the present framework, the neutrino phenomenology can be studied with the help of the non-trivial transformation of Yukawa couplings. The right-handed neutrino mass can be experimentally verified by reducing it to the TeV range via the application of the inverse seesaw mechanism. In this work, we build the neutrino mass matrix and explain about the neutrino mixing phenomena. We show that the obtained CP violating phase and mixing angles are compatible with the observed 3σ ranges of existing neutrino oscillation data.