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Impact-Parameter Dependence of the Diagonal GPD of the Pion from Chiral Quark Models

Wojciech Broniowski·Enrique Ruiz Arriola
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Abstract

We analyze the impact-parameter dependent diagonal non-singlet generalized parton distribution of the pion in two distinct chiral quark models: the Spectral Quark Model and the Nambu-Jona-Lasinio model. Leading-order perturbative QCD evolution from the low quark-model scale to higher scales is carried out with the help of the inverse Mellin transform. The model agrees very reasonably with the recent results from transverse-lattice calculations, while the forward parton distribution agrees with the experimental data.

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Wojciech Broniowski, Enrique Ruiz Arriola. 2003-10-03. Impact-Parameter Dependence of the Diagonal GPD of the Pion from Chiral Quark Models. https://arxiv.org/abs/hep-ph/0310048

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