GAUGE-INVARIANT SMEARING AND MATRIX CORRELATORS USING WILSON FERMIONSAT BETA=6.2

Authors
ALLTON CR SACHRAJDA CT BAXTER RM BOOTH SP BOWLER KC COLLINS S HENTY DS KENWAY RD PENDLETON BJ RICHARDS DG SIMONE JN SIMPSON AD WILKES BE MICHAEL C
Citation
Cr. Allton et al., GAUGE-INVARIANT SMEARING AND MATRIX CORRELATORS USING WILSON FERMIONSAT BETA=6.2, Physical review. D. Particles and fields, 47(11), 1993, pp. 5128-5137
Citations number
25
Categorie Soggetti
Physics, Particles & Fields
Journal title
Physical review. D. Particles and fields → ACNP
ISSN journal
05562821
Volume
47
Issue
11
Year of publication
1993
Pages
5128 - 5137
Database
ISI
SICI code
0556-2821(1993)47:11<5128:GSAMCU>2.0.ZU;2-Y
Abstract
We present an investigation of gauge-invariant smearing for Wilson fer mions in quenched lattice QCD on a 24(3) X 48 lattice at beta = 6.2. W e demonstrate a smearing algorithm that allows a substantial improveme nt in the determination of the baryon spectrum obtained using propagat ors smeared at both source and sink, at only a small computational cos t. 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.