Explicit perturbations to the stabilizer τ = i of modular A 5 ′ $$ {A}_5^{\prime } $$ symmetry and leptonic CP violation

Abstract In a class of neutrino mass models with modular flavor symmetries, it has been observed that CP symmetry is preserved at the fixed point (or stabilizer) of the modulus parameter τ = i, whereas significant CP violation emerges within the neighbourhood of this stabilizer. In this paper, we fi...

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