NLO light-cone sum rules for the nucleon electromagnetic form factors

Abstract

We study the electromagnetic nucleon form factors within the approach based on light-cone sum rules. We include the next-to-leading-order corrections for the contributions of twist-three and twist-four operators and a consistent treatment of the nucleon mass corrections in our calculation. It turns out that a self-consistent picture arises when the three valence quarks carry $40\%:30\%:30\%$ of the proton momentum.

Comments: 4 pages, 5 figures; Talk given at XV Workshop on High Energy Spin Physics, Dubna, Russia, October 8-12, 2013