We study a realization of light dilatons by considering Conformal Field Theories deformed by a nearly marginal operator ${ \cal O}$. This is discussed in the holographic setup consisting of Renormalization Group flows that end on a soft wall. We obtain a mass formula for the dilaton as an average along the flow. Finally we discuss the holographic method to compute the condensate $\langle { \cal O} \rangle$.
Categories: hep-th hep-ph