Parity Doubling and the S Parameter below the Conformal Window

We describe a lattice simulation of the masses and decay constants of the lowest-lying vector and axial resonances, and the electroweak S parameter, in an SU(3) gauge theory with Nf=2 and 6 fermions in the fundamental representation. The spectrum becomes more parity doubled and the S parameter per electroweak doublet decreases when Nf is increased from 2 to 6, motivating study of these trends as Nf is increased further, toward the critical value for transition from confinement to infrared conformality.