Impact Parameter-Dependent Parton Distributions for a Relativistic Composite System

摘要

We investigate the impact parameter-dependent parton distributions for a relativistic composite system in light-front framework. We express them in terms of overlaps of light-cone wave functions for a self-consistent two-body spin-1/2 state, namely an electron dressed with a photon in QED. The pdf's are distorted in the transverse space for transverse polarization of the state at one-loop level.