163 citations · 1k across the 20 of their papers we have counts for
6 papers · 1 filter
A quark action for very coarse lattices
M. Alford, Timothy Klassen, Peter Lepage
We investigate a tree-level O(a^3)-accurate action, D234c, on coarse lattices. For the improvement terms we use tadpole-improved coefficients, with the tadpole contribution measure…
The Effectiveness of Non-Perturbative O(a) Improvement in Lattice QCD
R. G. Edwards, U. M. Heller, T. R. Klassen
The ALPHA collaboration has determined the O(a) improved Wilson quark action for lattice spacings fm, in the quenched approximation. We extend this result to coarser la…
Accurate Scale Determinations for the Wilson Gauge Action
R. G. Edwards, U. M. Heller, T. R. Klassen
Accurate determinations of the physical scale of a lattice action are required to check scaling and take the continuum limit. We present a high statistics study of the static poten…
The Schrödinger Functional and Non-Perturbative Improvement
R. G. Edwards, U. M. Heller, T. R. Klassen
After describing the Schrödinger functional for standard and improved gluon and quark actions we present results for the non-perturbative clover coefficients of the SW quark action…
Mean-link tadpole improvement of SW and D234 actions
Mark Alford, Timothy R. Klassen, Peter Lepage
We investigate a tadpole-improved tree-level-O(a^3)-accurate action, D234c, on coarse lattices, using the mean link in Landau gauge to measure the tadpole contribution. We find tha…
The Schrödinger Functional for Improved Gluon and Quark Actions
T. R. Klassen
The Schrödinger Functional (quantum/lattice field theory with Dirichlet boundary conditions) is a powerful tool in the non-perturbative improvement and for the study of other aspec…