TTP - TTP99-01 Expansion Techniques in Massive Quark Production: Results and Applications

Institute for Theoretical Particle Physics (TTP)

1999

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

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TTP99-01 Expansion Techniques in Massive Quark Production: Results and Applications

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