TTP99-01 Expansion Techniques in Massive Quark Production: Results and Applications
TTP99-01 Expansion Techniques in Massive Quark Production: Results and Applications
TTP99-01 Expansion Techniques in Massive Quark Production: Results and Applications
Recent progress in the calculation of multi-loop, multi-scale diagrams
is reviewed. Expansion techniques combined with new developments in
Computer algebra allow to evaluate the R ratio for massive quarks
up to order $\alpha_s^2$ and, partly, even $\alpha_s^3$. Similar
techniques can be applied to Higgs- or Z-boson decays and mixed QCD
and electroweak interactions.
J.H. Kuehn
Radiative corrections: Application of quantum field theory to phenomenology, Proceedings of the 4th international symposium, Barcelona, 1998, edited by Joan Sola (World Scientific, Singapore, 1999), 202-222