Quark-hadron duality and intrinsic transverse momentum

It is demonstrated that local quark-hadron duality prescription applied to several exclusive processes involving the pion, is equivalent to using an effective (q) over bar q (two-body) light-cone wave function Psi((LD))(x,k(perpendicular to)) for the pion. This wave function models soft dynamics of all higher (q) over bar G...Gq Fock components of the standard light-cone approach. Contributions corresponding to higher Pock components in a hard regime appear in this approach as radiative corrections and are suppressed by powers of alpha(s)/pi.