摘要:We study how leptogenesis can be implemented in the seesaw models with 𝑆4 flavor symmetry, which lead to the tri-bimaximal neutrino mixing matrix. By considering renormalization group
evolution from a high-energy scale of flavor symmetry breaking (the GUT scale is assumed) to the
low-energy scale of relevant phenomena, the off-diagonal terms in a combination of Dirac Yukawa-coupling matrix can be generated and the degeneracy of heavy right-handed neutrino Majorana
masses can be lifted. As a result, the flavored leptogenesis is successfully realized. We also investigate
how the effective light neutrino mass |⟨𝑚𝑒𝑒⟩| associated with neutrinoless double beta decay can be
predicted along with the neutrino mass hierarchies by imposing the experimental data on the low-energy observables. We find a link between the leptogenesis and the neutrinoless double beta decay
characterized by |⟨𝑚𝑒𝑒⟩| through a high-energy CP phase ϕ, which is correlated with the low-energy
Majorana CP phases. It is shown that the predictions of |⟨𝑚𝑒𝑒⟩| for some fixed parameters of the
high-energy physics can be constrained by the current observation of baryon asymmetry.