Double Parton Correlations in the Bag Model

TL;DR

This paper uses a bag model to estimate double parton distribution functions, revealing significant correlations in flavor, spin, and momentum, which are crucial for understanding double parton scattering in hadrons.

Contribution

First estimate of double parton correlations in a bag model, highlighting their significance in flavor, spin, and momentum, aiding experimental analysis.

Findings

Significant correlations in flavor, spin, and momentum fractions.

Negligible correlations with transverse separation.

Model estimates will assist experimental disentanglement of correlations.

Abstract

Double parton scattering is sensitive to correlations between the two partons in the hadron, including correlations in flavor, spin, color, momentum fractions and transverse separation. We obtain a first estimate of the size of these correlations by calculating the corresponding double parton distribution functions in a bag model of the proton. We find significant correlations between momentum fractions, spin and flavor, but negligible correlations with transverse separation. The model estimates of the relative importance of these correlations will help experimental studies disentangle them.