Generalized vector form factors of the pion in a chiral quark model

Details Generalized vector form factors of the pion in a chiral quark model Generalized vector form factors of the pion in a chiral quark model

2008-05-29

arxiv.org/abs/0805.4589v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Dedicated to the memory of Manoj K. Banerjee, to appear in a special issue of the Indian Journal of Physics, 6 pages, 4 figure

Scientific paper

Generalized vector form factors of the pion, related to the moments of the generalized parton distribution functions, are evaluated in the Nambu--Jona-Lasinio model with the Pauli-Villars regularization. The lowest moments (the electromagnetic and the gravitational form factors) are compared to recent lattice data, with fair agreement. Predictions for higher-order moments are also made. Relevant features of the generalized form factors in the chiral quark models are highlighted and the role of the QCD evolution for the higher-order GFFs is stressed.

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