Quasi two-zero texture in Type-II seesaw at fixed points from modular $A_4$ symmetry

Takaaki Nomura; Hiroshi Okada

doi:10.1093/ptep/ptag024

paper

Quasi two-zero texture in Type-II seesaw at fixed points from modular $A_{4}$ symmetry

arXiv:2407.13167 · doi:10.1093/ptep/ptag024

Abstract

We study a quasi two-zero neutrino texture based on a type-II seesaw model with modular $A_{4}$ symmetry to evade the cosmological bound on the sum of neutrino masses while keeping some predictability in the neutrino sector. Working on three fixed points for modulus, we discuss predictions of the model and show the allowed points satisfying the cosmological bound on neutrino mass from both CMB and CMB+BAO data.

26 pages, 14 figures, 2 tables; accepted version for publication in Progress of Theoretical and Experimental Physics (PTEP)

Quasi two-zero texture in Type-II seesaw at fixed points from modular A4​ symmetry

Abstract

Quasi two-zero texture in Type-II seesaw at fixed points from modular $A_{4}$ symmetry