Instantons and Glueballs
High Energy Physics - Phenomenology
2007-05-23 v1
Abstract
We investigate the impact of instantons on scalar glueball properties in a largely model-independent analytical approach based on the instanton-improved operator product expansion (IOPE) of the glueball correlator. The instanton contributions turn out to be dominant, to substantially improve the consistency of the correponding QCD sum rules, and to increase the glueball residue about fivefold.
Keywords
Cite
@article{arxiv.hep-ph/0103204,
title = {Instantons and Glueballs},
author = {H. Forkel},
journal= {arXiv preprint arXiv:hep-ph/0103204},
year = {2007}
}
Comments
6 pages, 1 figure. Contribution to Hirschegg '01, "The Structure of Hadrons", Jan. 2001