Volume 290 - 13th International Symposium on Radiative Corrections (Applications of Quantum Field Theory to Phenomenology) (RADCOR2017) - Session: Feynman Diagrams
The method of global R* and its applications
K. Chetyrkin, G. Falcioni*, F. Herzog and J.A.M. Vermaseren
*: corresponding author
Full text: pdf
Pre-published on: March 12, 2018
Published on: July 02, 2018
Abstract
The global $R^*$ operation is a powerful method for computing renormalisation group functions. This technique, based on the principle of infrared rearrangement, allows to express all the ultraviolet counterterms in terms of massless propagator integrals. In this talk we present the main features of global $R^*$ and its application to the renormalisation of QCD. By combining this approach with the use of the program Forcer for the evaluation of the relevant Feynman integrals, we renormalise for the first time QCD at five loops in covariant gauges.
DOI: https://doi.org/10.22323/1.290.0004
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