A numerical study of quenched QCD for light quarks is presented using O(a) improved fermions. Particular attention is paid to the possible existence and determination of quenched chiral logarithms. A `safe' region to use for chiral extrapolations appears to be at and above the strange quark mass.
Cite
@article{arxiv.hep-lat/0002013,
title = {Quenched QCD near the chiral limit},
author = {M. Gockeler and R. Horsley and D. Petters and D. Pleiter and P. E. L. Rakow and G. Schierholz},
journal= {arXiv preprint arXiv:hep-lat/0002013},
year = {2007}
}
Comments
9 pages, Latex, 8 figures, crckapb.sty included. Talk given at the Workshop: Lattice Fermions and the Structure of the Vacuum, October 1999, Dubna, Russia