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In an attempt to simultaneously explain the observed masses and mixingpatterns of both quarks and leptons, we recently proposed a model(JHEP08(2010)115) based on the non abelian discrete flavor group A4,implemented in a custodial RS setup with a bulk Higgs. We showed that thestandard model flavor structure can be realized within the zero modeapproximation (ZMA), with nearly tribimaximal (TBM) neutrino mixing and arealistic CKM matrix with rather mild assumptions. An important advantage ofthis framework with respect to flavor anarchic models is the vanishing of thedangerous tree level KK gluon contribution to \epsilon_K and the suppression ofthe new physics one loop contributions to the neutron EDM, \epsilon'/\epsilon,b->s\gamma and Higgs mediated flavor changing neutral current (FCNC) processes.These results are obtained beyond the ZMA, in order to account for the the fullflavor structure and mixing of the zero modes and first Kaluza-Klein (KK) modesof all generations. The resulting constraints on the KK mass scale are shown tobe significantly relaxed compared to the flavor anarchic case, showingexplicitly the role of non abelian discrete flavor symmetries in relaxingflavor violation bounds within the RS setup. As a byproduct of our analysis wealso obtain the same contributions for the custodial anarchic case with twoSU(2)_R doublets for each fermion generation.

Suppression of flavor violation in an A4 warped extra dimensional model