The Light Hadron Mass Spectrum with Non-Perturbatively O(a) Improved Wilson Fermions

Abstract

We compute the light hadron mass spectrum in quenched lattice QCD at $\beta =6.0$ using the Sheikholeslami-Wohlert fermionic action. The calculation is done for several choices of the coefficient $c_{SW}$, including $c_{SW}=0$ and the recently proposed optimal value $c_{SW}=1.769$. We find that the individual masses change by up to 30\% under $O(a)$ improvement. The spectrum calculation suggests $c_{SW}\approx 1.4$ for the optimal value of the coefficient.

15 pages, uuencoded Z-compressed postscript file. Also available from http://www.desy.de/pub/preprints/desy/1996

References in corpus (4)

• On the Viability of Lattice Perturbation Theory
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Cited by in corpus (19)

• Non-perturbative O(a) improvement of lattice QCD
• O(a) improvement of lattice QCD with two flavors of Wilson quarks
• Pion and Rho Structure Functions from Lattice QCD
• Light Hadron Masses from Lattice QCD
• Renormalisation and off-shell improvement in lattice perturbation theory
• Scaling of Non-Perturbatively O(a) Improved Wilson Fermions: Hadron Spectrum, Quark Masses and Decay Constants
• Light Quark Masses from Lattice QCD
• Quenched QCD with O(a) improvement: I. The spectrum of light hadrons
• Negative-parity Baryon Masses using an O(a)-improved Fermion Action
• Baryon masses, chiral extrapolations, and all that
• Investigating and Optimizing the Chiral Properties of Lattice Fermion Actions
• Non-perturbatively Renormalized Light-Quark Masses with the Alpha Action
• Excited nucleon spectrum using a non-perturbatively improved clover fermion action
• Leptonic Decays of Heavy Quarks on the Lattice
• Tests of Hypercubic Fermion Actions
• Light Hadron Spectroscopy
• A lattice determination of the second moment of the polarised valence quark distribution
• Scaling investigation of renormalized correlation functions in O(a) improved quenched lattice QCD
• Exceptional Configurations with the Clover Action