We present some techniques which have been developed recently or in the recent past to compute Feynman graphs beyond one-loop order. These techniques are useful to compute the three-loop splitting functions in QCD and to obtain the complete second order QED corrections to Bhabha scattering.
@article{arxiv.hep-ph/0003043,
title = {Higher Order Corrections in Perturbative Quantum Chromo Dynamics},
author = {W. L. van Neerven},
journal= {arXiv preprint arXiv:hep-ph/0003043},
year = {2015}
}
Comments
10 pages, LaTex. To appear in PRAMANA journal of physics