2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/227174We study metastable dynamical breaking of supersymmetry in A_n quiver gauge theories. We present a general analysis and criteria for the perturbative existence of metastable vacua in quivers of any length. Different mechanisms of gauge mediation can be realized.Minor corrections, reference added, published in JHEPHigh Energy Physics - Theorytext