Diquarks as effective particles in hard exclusive scattering

Details Diquarks as effective particles in hard exclusive scattering Diquarks as effective particles in hard exclusive scattering

1999-01-18

arxiv.org/abs/hep-ph/9901338v1

Fizika B8:371-374,1999

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 1 figure as eps-file

Scientific paper

In the context of hard hadronic reactions diquarks are a useful phenomenological device to model non-perturbative effects still observable in the kinematic range accessible by present-day experiments. In the following we present diquark-model predictions for $\gamma\gamma \to p \bar{p}$ and $\Lambda \bar{\Lambda}$. We also sketch how the (pure quark) hard-scattering formalism for exclusive reactions involving baryons can be reformulated in terms of quarks and diquarks. As an application of these considerations we analyze the magnetic proton form factor with regard to its quark-diquark content.

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