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arXiv · hep-ph/9611370

Exclusive photo- and electroproduction of mesons at large momentum transfer

G. Folberth·R. Rossmann·W. Schweiger
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Abstract

We analyze the reactions gamma+p => M+B, with M B being either K+ Lambda, K+ Sigma0, or pi+ n, within perturbative QCD, allowing for diquarks as quasi-elementary constituents of baryons. The diquark-model parameters and the quark-diquark distribution amplitudes of the baryons are taken from previous investigations of electromagnetic baryon form factors and Compton- scattering off protons. Reasonable agreement with the few existing data at large momentum transfer is achieved if the asymptotic form (c x (1-x)) is chosen for the meson distribution amplitudes.

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G. Folberth, R. Rossmann, W. Schweiger. 1996-11-19. Exclusive photo- and electroproduction of mesons at large momentum transfer. https://arxiv.org/abs/hep-ph/9611370

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