Processing math: 100%
PoS - Proceedings of Science
Volume 363 - 37th International Symposium on Lattice Field Theory (LATTICE2019) - Main session
Yang Mills short distance potential and perturbation theory
N. Husung, A. Nada and R. Sommer*
Full text: pdf
Pre-published on: January 29, 2020
Published on: August 27, 2020
Abstract
We compute the coupling αqq defined in terms of the static quark force by simulating the SU(3) Yang-Mills theory at lattice spacings down to 102~fm, keeping the volume large. In order to systematically improve the approach to the continuum,
we subtract the leading cutoff effects in Symanzik's effective theory, resumming the
leading log(a/r)-term by renormalization group improvement. Subsequently we extrapolate with ˉg2(a1)ˆγ1(a/r)2 corrections to the continuum limit.
We finally investigate the applicability of continuum perturbation theory, extract the pure-gauge Λ-parameter at different values of αqq and different orders of perturbation theory and compare to other methods.
DOI: https://doi.org/10.22323/1.363.0263
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.