  We study a simple holographic model for gauge theories near the conformal
edge to show that the dilaton can be parametrically lighter than any other
composite states. The masses of all composite states, except the
Nambu-Goldstone bosons like dilaton, are bounded by the infrared scale or the
dynamical mass. The parametric dependence of the dilaton mass is controlled by
the closeness of the anomalous dimension of the quark bilinear, that breaks
spontaneously the scale symmetry, to the conformality. We also show in the
holographic dual that under certain assumptions, the dilaton saturates at low
energy the anomalous Ward identity for the dilatation currents.

High Energy Physics - Phenomenology;High Energy Physics - Theory