  We present a particular warped extra dimensional model, where the flavour
diagonal and flavour non-diagonal Z boson couplings to left-handed down quarks
are protected by the custodial symmetry P_LR. After a brief introduction of the
model and of its main theoretical motivations, we present a complete study of
rare K and B meson decays, including K+ --> pi+ nu anti-nu, K_L --> pi0 nu
anti-nu, B_{s,d} --> mu+ mu- and B_{s,d} --> X_{s,d} nu anti-nu. In particular
we restrict the parameter space of the model to the subspace which fits all
quark masses, CKM mixing parameters and all the measured Delta F=2 observables,
keeping the Kaluza-Klein scale in the reach of LHC (~(2-3)TeV). There we show
that, in addition to the one loop contribution of the Standard Model (SM), the
dominating new physics contribution to the rare decays of K and B_{s,d} mesons
is the tree level exchange of the Z boson of the SM governed by right-handed
couplings to down-type quarks. In order to reduce the parameter dependence, we
study correlations between various branching ratios of B and K mesons and
between Delta F=1 and Delta F=2 observables. The patterns that we find allow to
distinguish this new physics scenario from the SM and can offer an opportunity
to future experiments to confirm or rule out the model.

High Energy Physics - Phenomenology