Abstract
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.
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van Neerven, W. Higher order corrections in perturbative quantum chromodynamics. Pramana - J Phys 55, 101–111 (2000). https://doi.org/10.1007/s12043-000-0087-0
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DOI: https://doi.org/10.1007/s12043-000-0087-0