Tests of Hypercubic Fermion Actions

Abstract

I have performed scaling tests using quenched spectroscopy of a family of fermion actions which have a hypercubic kinetic term, gauge connections built of smeared links, and an anomalous magnetic moment term. These actions show improved rotational invariance compared to the standard Wilson action and to the tadpole-improved clover action. Hyperfine splittings are improved compared to the standard Wilson action (at the level of a factor of three in the lattice spacing), and are about the same as for the tadpole-improved clover action.

30 pages, LaTeX, 16 figures, uses epsf

References in corpus (4)

• The index theorem in QCD with a finite cut-off
• Topological Structure in the SU(2) Vacuum
• Scaling of Non-Perturbatively O(a) Improved Wilson Fermions: Hadron Spectrum, Quark Masses and Decay Constants
• Fixed point action for the massless lattice Schwinger model

Cited by in corpus (19)

• Analytic Smearing of SU(3) Link Variables in Lattice QCD
• Variants of fattening and flavor symmetry restoration
• Light Hadron Masses from Lattice QCD
• A variant approach to the overlap action
• Improved staggered quark actions with reduced flavour symmetry violations for lattice QCD
• Simple Observables from Fat Link Fermion Actions
• Short distance current correlators: Comparing lattice simulations to the instanton liquid
• Fixed Point Gauge Actions with Fat Links: Scaling and Glueballs
• Investigating and Optimizing the Chiral Properties of Lattice Fermion Actions
• One loop matching coefficients for a variant overlap action--and some of its simpler relatives
• Brillouin improvement for Wilson fermions
• Dynamical Fermions with Fat Links
• Comment on ``Evidence Against Instanton Dominance of Topological Charge Fluctuations in QCD''
• Lattice QCD at the end of 2003
• Scaling and Eigenmode Tests of the Improved Fat Clover Action
• Simulation of dynamical fermions with smeared links
• Perfect Scalars on the Lattice
• The Schwinger Model with Perfect Staggered Fermions
• Dynamical overlap fermions: techniques and results