Restricted locality of quark-hadron duality in exclusive meson photoproduction reactions above the resonance region

Details Restricted locality of quark-hadron duality in exclusive meson photoproduction reactions above the resonance region Restricted locality of quark-hadron duality in exclusive meson photoproduction reactions above the resonance region

2004-11-19

arxiv.org/abs/hep-ph/0411257v1

Int.J.Mod.Phys. A20 (2005) 1910-1913

Physics

High Energy Physics

High Energy Physics - Phenomenology

Contribution to the 10th International Symposium on Meson-Nucleon Physics and the Structure of the Nucleon (MENU2004), Beijing

Scientific paper

10.1142/S0217751X0502361X

We show how deviations from the dimensional scaling laws for exclusive processes may be related to a breakdown in the locality of quark-hadron duality, i.e. the "restricted locality". For exclusive reactions like meson photo- and electroproduction above the resonance region, we explore the effects arising from such a local duality breaking and propose that it can be a possible source for oscillations about the smooth quark counting rule predicted by pQCD in the 90-degree differential cross sections.

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