Quark-Hadron Duality and Intrinsic Transverse Momentum

Details Quark-Hadron Duality and Intrinsic Transverse Momentum Quark-Hadron Duality and Intrinsic Transverse Momentum

1995-11-08

arxiv.org/abs/hep-ph/9511272v1

Acta Phys.Polon. B26 (1995) 2067-2096

Physics

High Energy Physics

High Energy Physics - Phenomenology

26 pages LaTex, uses epsf.tex to insert figures; with 5 figures in encapsulated postscript form

Scientific paper

It is demonstrated in several exclusive processes involving the pion that a local quark-hadron duality prescription is equivalent to using an effective $ \bar q q $ (two-body) light-cone wave function $\Psi^{(LD)}(x,k_{\perp})$ for the pion. This wave function models soft dynamics of all higher $\bar qG \ldots G q $ 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 $\alpha_s/\pi$.

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