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Abstract: The proper support of generalized parton distributions from relativisticconstituent quark models with pointlike constituents is studied. The correctsupport is guaranteed when the vertex function does not depend on the relativeminus-momentum. We show that including quark interactions in models withpointlike constituent quarks might lead to a support problem. A computation ofthe magnitude of the support problem in the Bonn relativistic constituent quarkmodel is presented.



Author: A. Van Dyck, T. Van Cauteren, J. Ryckebusch

Source: https://arxiv.org/







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