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

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Abstract

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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Authors and Affiliations

  1. The H. Niewodńiczanski Institute of Nuclear Physics, Polish Academy of Scieńces, PL-31342, Kraków, Poland

    Wojciech Broniówski

  2. Institute of Physics, Jan Kochanowski University, PL-25406, Kielce, Poland

    Wojciech Broniówski

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  1. Wojciech Broniówski
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Correspondence to Wojciech Broniówski.

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Dedicated to the memory of Manoj K. Banerjee.

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Broniówski, W. Generalized vector form factors of the pion in a chiral quark model. Indian J Phys 83, 649–660 (2009). https://doi.org/10.1007/s12648-009-0080-5

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  • DOI: https://doi.org/10.1007/s12648-009-0080-5

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