Lattice simulations for the running coupling constant of QCD
High Energy Physics - Lattice
2017-08-23 v1
Abstract
The strong coupling constant alpha_s(mu_0), taken at a fixed reference scale mu_0, is the single free parameter of QCD and should be known to the highest available precision. The value of alpha_s should also be determined with good accuracy over as large a range of scales as possible, in order to reveal potential anomalous running in the strength of the strong interaction. Lattice QCD is now able to calculate alpha_s with accuracy comparable to or better than experiment. We review the status of such lattice calculations in quenched and full QCD.
Keywords
Cite
@article{arxiv.hep-lat/0209076,
title = {Lattice simulations for the running coupling constant of QCD},
author = {Attilio Cucchieri},
journal= {arXiv preprint arXiv:hep-lat/0209076},
year = {2017}
}
Comments
10 pages; invited seminar presented at the VIII International Workshop on Hadron Physics 2002, Bento Goncalves RS, Brazil, April 14-19, 2002