TY - JOUR AU - Celis, A. AU - Fuentes-Martin, J. AU - Serodio, H. PY - 2015 DA - 2015// TI - An invisible axion model with controlled FCNCs at tree level T2 - Phys. Lett. B JO - Physics Letters B SP - 117 EP - 123 VL - 741 PB - Elsevier Science Bv AB - We derive the necessary conditions to build a class of invisible axion models with Flavor Changing Neutral Currents at tree-level controlled by the fermion mixing matrices and present an explicit model implementation. A horizontal Peccei-Quinn symmetry provides a solution to the strong CP problem via the Peccei-Quinn mechanism and predicts a cold dark mater candidate, the invisible axion or familon. The smallness of active neutrino masses can be explained via a type I seesaw mechanism, providing a dynamical origin for the heavy seesaw scale. The possibility to avoid the domain wall problem stands as one of the most interesting features of the type of models considered. Experimental limits relying on the axion-photon coupling, astrophysical considerations and familon searches in rare kaon and muon decays are discussed. SN - 0370-2693 UR - http://arxiv.org/abs/1410.6217 UR - https://doi.org/10.1016/j.physletb.2014.12.028 DO - 10.1016/j.physletb.2014.12.028 LA - English N1 - WOS:000348290800016 ID - Celis_etal2015 ER -