12 papers · 1 filter
The strong coupling constant from lattice QCD with N_f=2 dynamical quarks
S. Booth, M. Göckeler, R. Horsley +8
We compute for two flavors of light dynamical quarks using non-perturbatively improved Wilson fermions. We improve on a recent calculation by employing Padé-i…
Effects of non-perturbatively improved dynamical fermions in QCD at fixed lattice spacing
UKQCD Collaboration, C. R. Allton, S. P. Booth +17
We present results for the static inter-quark potential, lightest glueballs, light hadron spectrum and topological susceptibility using a non-perturbatively improved action on a $1…
Determination of from quenched and dynamical QCD
S. Booth, M. Göckeler, R. Horsley +8
The scale parameter is computed on the lattice in the quenched approximation and for flavors of light dynamical quarks. The dynamical calculation is d…
Instability in the Molecular Dynamics Step of Hybrid Monte Carlo in Dynamical Fermion Lattice QCD Simulations
Balint Joo, Brian Pendleton, Anthony D. Kennedy +5
We investigate instability and reversibility within Hybrid Monte Carlo simulations using a non-perturbatively improved Wilson action. We demonstrate the onset of instability as tol…
Light hadron spectroscopy with O(a) improved dynamical fermions
UKQCD Collaboration, C. R. Allton, S. P. Booth +12
We present the first results for the static quark potential and the light hadron spectrum using dynamical fermions at using an O(a) improved Wilson fermion action together…
Implementing the Generalised Hybrid Monte-Carlo Algorithm
Z. Sroczynski, S. M. Pickles, S. P. Booth
UKQCD's dynamical fermion project uses the Generalised Hybrid Monte-Carlo (GHMC) algorithm to generate QCD gauge configurations for a non-perturbatively O(a) improved Wilson action…