Singlet fermion dark matter and Dirac neutrinos from Peccei-Quinn symmetry

The Peccei-Quinn (PQ) mechanism not only acts as an explanation for the absence of strong charge parity ($CP$) violation but also can play a main role in solution to other open questions particle physics and cosmology. Here we consider model that identifies PQ symmetry common thread $CP$ problem, generation radiative Dirac neutrino masses origin multicomponent dark sector. Specifically, scotogenic arise at one-loop level with lightest fermionic mediator field acting second matter (DM) candidate thanks residual ${Z}_{2}$ resulting from breaking. We perform phenomenological analysis addressing constraints coming direct searches DM, oscillation data charged lepton flavor violating (LFV) processes. find be partially probed future facilities searching weakly interacting massive particles axions, accommodates rates rare leptonic decays are within expected sensitivity upcoming LFV experiments.