Generalized parton distributions in a light-front nonperturbative   approach
  Basis Light-front Quantization (BLFQ) has recently been developed as a promising nonperturbative technique. Using BLFQ, we investigate the Generalized Parton Distributions (GPDs) in a nonperturbative framework for a dressed electron in QED. We evaluate light-front wave functions and carry out overlap calculations to obtain GPDs. We also perform perturbative calculations in the corresponding basis spaces to demonstrate that they compare reasonably with the BLFQ results. 
D. Chakrabarti, X. Zhao, H. Honkanen, R. Manohar, P. Maris, J. P. Vary
hep-ph