Flavored axion in the UV-complete Froggatt–Nielsen models

Abstract We propose UV-completions of Froggatt–Nielsen–Peccei–Quinn models fermion masses and mixings with flavored axions, by incorporating heavy fields. Here, the U (1) Froggatt–Nielsen symmetry is identified Peccei–Quinn to solve strong CP problem along mass hierarchies Standard Model fermions. take into account leading order contributions matrices giving rise Nearest-Neighbour-Interaction structure in quark sector $$A_2$$ A 2 texture neutrino sector. A comprehensive numerical analysis has been performed for matrices. Subsequently, we investigate resulting axion flavor violating couplings axion-photon coupling arising from model.