Generalized Valon Model for Double Parton Distributions

Abstract

We show how the double parton distributions may be obtained consistently from the many-body light-cone wave functions. We illustrate the method on the example of the pion with two Fock components. The procedure, by construction, satisfies the Gaunt-Stirling sum rules. The resulting single parton distributions of valence quarks and gluons are consistent with a phenomenological parametrization at a low scale.

Comments: 6 pages, talk presented by WB at the Light Cone 2015 Conference, Frascati, Italy, 21-25 September 2015, updated reference list