How good is the quenched approximation of QCD?
High Energy Physics - Lattice
2015-06-25 v2 High Energy Physics - Phenomenology
Abstract
The quenched approximation for QCD is, at present and in the foreseeable future, unavoidable in lattice calculations with realistic choices of the lattice spacing, volume and quark masses. In this talk, I review an analytic study of the effects of quenching based on chiral perturbation theory. Quenched chiral perturbation theory leads to quantitative insight on the difference between quenched and unquenched QCD, and reveals clearly some of the diseases which are expected to plague quenched QCD. Uses jnl.tex and epsf.tex for figure 3. Figures 1 and 2 not included, sorry. Available as hardcopy on request.
Keywords
Cite
@article{arxiv.hep-lat/9405002,
title = {How good is the quenched approximation of QCD?},
author = {Maarten F. L. Golterman},
journal= {arXiv preprint arXiv:hep-lat/9405002},
year = {2015}
}
Comments
22 pages, Wash. U. HEP/94-62 (Forgotten set of macros now included, sorry.)