We present an investigation of gauge-invariant smearing for Wilson fermions in quenched lattice QCD on a 243×48 lattice at β=6.2. We demonstrate a smearing algorithm that allows a substantial improvement in the determination of the baryon spectrum obtained using propagators smeared at both source and sink, at only a small computational cost. We investigate the matrix of correlators constructed from local and smeared operators, and are able to expose excited states of both the mesons and baryons.
@article{arxiv.hep-lat/9303009,
title = {Gauge-Invariant Smearing and Matrix Correlators using Wilson Fermions at beta=6.2},
author = {UKQCD Collaboration},
journal= {arXiv preprint arXiv:hep-lat/9303009},
year = {2012}
}
Comments
16 pages of LaTex ,22 postscript figures NOT included (sorry, postscript files available on request from [email protected]) Edinburgh preprint: 92/513, Liverpool: LTH 302, Southampton: SHEP 92/93-9. Accepted for publication by Phys. Rev. D