Perturbative and nonperturbative correlations in double parton distributions

Abstract

We argue that the perturbative QCD correlations contribute dominantly to the double parton distributions as compared to the nonperturbative ones in the limit of sufficiently large hard scales and for not parametrically small longitudinal momentum fractions.

arXiv comment7 pages, Refs. and explanations added, accepted for publication in Phys. Rev. D

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