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### Gauge-invariant smearing and matrix correlators using Wilson fermions atβ=6.2 / Christopher Michael, R.D. Kenway, B.J. Pendleton, Christopher T. Sachrajda, D.G. Richards, K.C. Bowler, S.P. Booth, D.S. Henty, J.N. Simone, A.D. Simpson, R.M. Baxter, S. Collins, B.E. Wilkes, Chris Allton

Physical Review D, Volume: 47, Issue: 11, Pages: 5128 - 5137

Swansea University Author:

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DOI (Published version): 10.1103/PhysRevD.47.5128

Abstract

We present an investigation of gauge-invariant smearing for Wilson fermions in quenched lattice QCD on a $24^3 \times 48$ lattice at $\beta = 6.2$. We demonstrate a smearing algorithm that allows a substantial improvement in the determination of the baryon spectrum obtained using propagators smeared...

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Published in: Physical Review D 0556-2821 1993 https://cronfa.swan.ac.uk/Record/cronfa28470 No Tags, Be the first to tag this record!
Abstract: We present an investigation of gauge-invariant smearing for Wilson fermions in quenched lattice QCD on a $24^3 \times 48$ lattice at $\beta = 6.2$. 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. College of Science 11 5128 5137