The perturbative proton form factor reexamined

  title={The perturbative proton form factor reexamined},
  author={Bijoy Kundu and Hsiang-nan Li and J. Samuelsson and P. Jain},
  journal={The European Physical Journal C - Particles and Fields},
Abstract. We recalculate the proton Dirac form factor based on the perturbative QCD factorization theorem, which includes Sudakov suppression. The evolution scale of the proton wave functions and the infrared cutoffs for the Sudakov re-summation are carefully chosen such that the soft divergences from large coupling constants are diminished and perturbative QCD predictions are stabilized. We find that the King–Sachrajda model for the proton wave function leads to results which are in better… Expand
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