Efficient Hadronic Operators in Lattice Gauge Theory

Abstract

We study operators to create hadronic states made of light quarks in quenched lattice gauge theory. We construct non-local gauge-invariant operators which provide information about the spatial extent of the ground state and excited states. The efficiency of the operators is shown by looking at the wave function of the first excited state, which has a node as a function of the spatial extent of the operator. This allows one to obtain an uncontaminated ground state for hadrons.

18 pages, Latex text, followed by 11 postscript figures in self-unpacking file. Also available at ftp://suna.amtp.liv.ac.uk/pub/cmi/wavefn/

References in corpus (6)

• Gauge-Invariant Smearing and Matrix Correlators using Wilson Fermions at beta=6.2
• Fitting Correlated Data
• The Light Hadron Spectrum and Decay Constants in Quenched Lattice QCD
• Fitting Correlated Hadron Mass Spectrum Data
• Quenched Light Hadron Mass Spectrum and Decay Constants: the effects of $O(a)$-Improvement at $\beta =6.2$
• Bethe-Salpeter Amplitudes and Density Correlations for Mesons with Wilson Fermions

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