Transverse Structure of Nucleon Parton Distributions from Lattice QCD

Abstract

This work presents the first calculation in lattice QCD of three moments of spin-averaged and spin-polarized generalized parton distributions in the proton. It is shown that the slope of the associated generalized form factors decreases significantly as the moment increases, indicating that the transverse size of the light-cone quark distribution decreases as the momentum fraction of the struck parton increases.

arXiv comment4 pages, 1 figure

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• Flavour singlet physics in lattice QCD with background fields
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• Exclusive channels in semi-inclusive production of pions and kaons
• Hadron Tomography
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• Generalised parton distributions of the pion in partially-quenched chiral perturbation theory
• Generalized Parton Distributions in Full Lattice QCD
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• Hadron Tomography
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• Probing Nucleon Structure on the Lattice
• Nucleon Polarizabilities: Theory
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