Nonlinear breaking of the electroweak symmetry and large extra dimensions

We consider the coupling to gravity in 4+δ dimensions of a nonlinear electroweak symmetry breaking sector, with δ compactified dimensions, and derive an effective Lagrangian by integrating over the KK excitations of the graviton and of the dilaton. The effective chiral Lagrangian describes the interactions of the electroweak gauge bosons and the goldstone bosons from the electroweak breaking.