PoS - Proceedings of Science
Volume 260 - Loops and Legs in Quantum Field Theory (LL2016) - Plenary 2
Multiloop Renormalization Group: new results
K. Chetyrkin,* P. Baikov, J. Kühn
*corresponding author
Full text: pdf
Published on: October 06, 2016
Abstract
We present the result of the analytical computation of the five-loop term in the beta function which governs the running of $\alpha_s$ --- the quark-gluon coupling constant
in QCD. Using the result, a low-energy theorem and the four-loop QCD decoupling formula, we derive the effective Higgs-gluon-gluon coupling constant in five-loop approximation.
DOI: https://doi.org/10.22323/1.260.0010
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