We investigate the leading-twist transverse momentum-dependent distribution functions (TMDs) for a physical electron, a spin-1/2 composite system consisting of a bare electron and a photon, using the Basis Light-front Quantization (BLFQ) framework. The light-front wave functions of the physical electron are obtained from the eigenvectors of the light-front QED Hamiltonian. We evaluate the TMDs using the overlaps of the light-front wave functions. The BLFQ results are found to be in excellent agreement with those TMDs calculated using lowest-order perturbation theory.
@article{arxiv.2010.12498,
title = {Transverse structure of electron in momentum space in basis light-front quantization},
author = {Zhi Hu and Siqi Xu and Chandan Mondal and Xingbo Zhao and James P. Vary},
journal= {arXiv preprint arXiv:2010.12498},
year = {2021}
}