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In this paper, we discuss a minimal lepton flavor model with two modular Formula: see text symmetries, one acting on neutrinos and the other acting on charged leptons. Two corresponding moduli fields are restricted at stabilizers. To avoid vanishing or degenerate lepton masses, the stabilizer in the charged lepton sector always preserves a Formula: see text symmetry, and that in the neutrino preserves a Formula: see text symmetry. By scanning all viable stabilizers, a unique Trimaximal TM2 mixing is predicted. However, the prediction of the lightest neutrino mass and the mass parameter in neutrinoless double beta decay, as well as two Majorana phases, are different and classified into three cases.
Zhang et al. (Thu,) studied this question.