The logarithmic contribution to the QCD static energy at NNNNLO
High Energy Physics - Phenomenology
2010-11-04 v2 High Energy Physics - Lattice
Abstract
Using pNRQCD and known results for the field strength correlator, we calculate the ultrasoft contribution to the QCD static energy of a quark-antiquark pair at short distances at NNNNLO in alpha_s. At the same order, this provides the logarithmic terms of the singlet static potential in pNRQCD and the log alpha_s terms of the static energy.
Cite
@article{arxiv.hep-ph/0610143,
title = {The logarithmic contribution to the QCD static energy at NNNNLO},
author = {Nora Brambilla and Xavier Garcia i Tormo and Joan Soto and Antonio Vairo},
journal= {arXiv preprint arXiv:hep-ph/0610143},
year = {2010}
}
Comments
16 pages, 5 figures. Minor modifications. References added. Journal version