A bstract We present a Dirac scotogenic-like one loop radiative model where the stability of dark matter is intricately linked to the breaking of A 4 flavor symmetry. This breaking induces a Z₂ Z 2 dark symmetry, stabilizing the dark matter candidate. The breaking of A 4 → Z₂ Z 2 leads to cutting the loop and facilitating a “scoto inverse-seesaw” mass mechanism responsible for neutrino mass generation. This elucidates the explicit explanation of two mass-squared differences, m₀ₓ₌² ∆ m atm 2 and mₒ₎₋² ∆ m sol 2 observed in neutrino oscillations. Our model accounts for normal and inverted ordering of neutrino masses, revealing sharp correlations between ∑ m i and 〈 m β 〉. It also shows strong compatibility with current data in the δ CP – θ 23 plane. Moreover, stringent constraints on scalar masses narrow down the viable dark matter mass regions, accommodating SU (2) L singlet and doublet scalar dark matter as well as fermionic dark matter. Additionally, our model presents a viable avenue for addressing lepton flavor violating decays while remaining consistent with current experimental constraints.
Kumar et al. (Fri,) studied this question.