Generalized Valon Model for Double Parton Distributions

Understand

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.