Gauge Invariant Smearing and Matrix Correlators using Wilson Fermions at beta=6.2
Abstract
We present an investigation of gauge invariant smearing for Wilson fermions 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.
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