Wigner Distributions of the Quark and Gluon in the Light-Front Dressed Quark Model

摘要

Wigner distribution functions are quasi-probabilistic functions that can provide simultaneous information about the distribution in the momentum and position space. We study the Wigner distribution of the quark and gluon in the dressed quark model where the target state is a simple spin-? composite relativistic state of a quark at one loop dressed with a gluon. We also calculate the kinetic and canonical orbital angular momentum of the quark and gluon in this model.