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

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

2007-10-11

arxiv.org/abs/0710.2271v3

Phys.Lett.B662:413-416,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 4 figures. v2: specific calculation included, references and figure added. Submitted to Phys. Lett. B

Scientific paper

10.1016/j.physletb.2008.03.031

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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