NLO light-cone sum rules for the nucleon electromagnetic form factors
  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. 
I.V. Anikin, V.M. Braun, N. Offen
hep-ph