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arXiv · 0710.2271

Support of generalized parton distributions in Bethe-Salpeter models of hadrons

A. Van Dyck·T. Van Cauteren·J. Ryckebusch
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Abstract

The proper support of generalized parton distributions from relativistic constituent quark models with pointlike constituents is studied. The correct support is guaranteed when the vertex function does not depend on the relative minus-momentum. We show that including quark interactions in models with pointlike constituent quarks might lead to a support problem. A computation of the magnitude of the support problem in the Bonn relativistic constituent quark model is presented.

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A. Van Dyck, T. Van Cauteren, J. Ryckebusch. 2007-10-11. Support of generalized parton distributions in Bethe-Salpeter models of hadrons. https://doi.org/10.1016/j.physletb.2008.03.031

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