Deviation from <i>μ</i>-<i>τ</i> symmetry with new approaches

Abstract We propose two new predictive neutrino mass matrix textures that deviate from μ - τ symmetry and explore their phenomenological implications. These textures are significant due to their predictive nature and the unique approach they introduce for breaking the μ - τ symmetry. Both textures predict six physical parameters and impose sharp constraints on θ 23 and δ , considering both normal and inverted neutrino mass orderings. In addition, we realize the textures in their exact form within the framework of the seesaw mechanism, based on the symmetry group.