Quark-Hadron Duality and Intrinsic Transverse Momentum
نویسنده
چکیده
It is demonstrated that local quark-hadron duality prescription applied to several exclusive processes involving the pion, is equivalent to using an effective q̄q (two-body) light-cone wave function Ψ(LD)(x, k⊥) for the pion. This wave function models soft dynamics of all higher q̄G . . . Gq Fock components of the standard light-cone approach. Contributions corresponding to higher Fock components in a hard regime appear in this approach as radiative corrections and are suppressed by powers of αs/π. Presented at XXXV Cracow School of Theoretical Physics, Zakopane (Poland), June 4 14, 1995 Also at the Laboratory of Theoretical Physics, JINR, Dubna, Russian Federation
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