Three-loop Static QCD Potential in Heavy Quarkonia
High Energy Physics - Phenomenology
2013-08-28 v3
Abstract
We investigate the effects of including the full three-loop QCD correction to the static short distance potential on the spectroscopy and decays in the charmonium and upsilon systems. We use a variational technique with the full three-loop corrected potential to determine a set of unperturbed trial wave functions and treat the relativistic and one-loop corrections as perturbations. The perturbed results are compared to the subset of the charmonium and upsilon spectra using a test. This approach results in more accurate descriptions of the hyperfine splittings in both the and systems.
Cite
@article{arxiv.1211.6373,
title = {Three-loop Static QCD Potential in Heavy Quarkonia},
author = {Wayne W. Repko and Marco D. Santia and Stanley F. Radford},
journal= {arXiv preprint arXiv:1211.6373},
year = {2013}
}
Comments
New title, 7 pages, 5 tables,additional references