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- C. T. H. Davies, Eduardo Follana, +23 authors Jim Simone
- Physical review letters
- 2004

The recently developed Symanzik-improved staggered-quark discretization allows unquenched lattice-QCD simulations with much smaller (and more realistic) quark masses than previously possible. To testâ€¦ (More)

Quentin Mason, Howard D. Trottier, 3 Ron Horgan, Christine T. H. Davies, and G. Peter Lepage (HPQCD Collaboration) Department of Applied Mathematics and Theoretical Physics, Cambridge University,â€¦ (More)

- Matthew A. Nobes, Howard Trottier, G. Peter Lepage, Quentin Mason

It has long been known that perturbative calculations are necessary for precision measurements of many quantities. Unfortunately perturbation theory using a lattice cutoff is difficult, due to extraâ€¦ (More)

- Quentin Mason, Howard Trottier, +5 authors Junko Shigemitsu
- Physical review letters
- 2005

We obtain a new value for the QCD coupling constant by combining lattice QCD simulations with experimental data for hadron masses. Our lattice analysis is the first to (1) include vacuum polarizationâ€¦ (More)

J. Hein, C. Davies, G. P. Lepage, Q. Mason and H. Trottier (HPQCD and UKQCD collaboration) School of Physics, The University of Edinburgh, Edinburgh EH9 3JZ, Scotland, UK Department of Physics &â€¦ (More)

- Christine Davies, A. Laurence Gray, +8 authors Matthew Wingate
- 2002

C. Davies, A. Gray, M. Alford, E. Follana, J. Hein, P. Lepage, Q. Mason, M.Nobes, J.Shigemitsu, H. Trottier, M. Wingate, HPQCD and UKQCD collaborations. Department of Physics and Astronomy,â€¦ (More)

The HPQCD collaboration has a program for determining the fu ndamental constants of the Standard Model Lagrangian from lattice QCD. The most accurate me thod of doing this uses the n f = 2+ 1â€¦ (More)

It is well known that the naive discretization of quark fields in lattice QCD results in the generation, in dimension d, of 2 species of fermions, which we will call â€˜tastesâ€™. The theory alsoâ€¦ (More)

- Howard Trottier, G. Peter Lepage, Paul MacKenzie, Quentin Mason, Matthew A. Nobes
- 2001

Naive and staggered fermion actions (which have very similar properties) have numerous advantages over actions based on four-component Wilson fermions. They have an exact chiral symmetry, allowing aâ€¦ (More)

Eduardo FollanaGlasgow]Department of Physics & Astronomy, The University of Glasgow, Glasgow G12 8QQ, UK, Quentin MasonCornell]Laboratory of Elementary-Particle Physics, Cornell University, Ithaca,â€¦ (More)