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12 papers · 2 filters
Excitations of the static quark-antiquark system in several gauge theories
K. Jimmy Juge, Julius Kuti, Colin Morningstar
The spectrum of gluons in the presence of a static quark-antiquark pair is studied using Monte Carlo simulations on anisotropic space-time lattices. For very small quark-antiquark…
Lattice simulations of 2-colour QCD with Wilson fermions
Jon-Ivar Skullerud, Shinji Ejiri, Simon Hands +1
We report on the status of our simulations of two-colour QCD with two flavours of Wilson quarks, at nonzero chemical potential and diquark source. Preliminary results are presented…
SO(3) vs. SU(2) Yang-Mills theory on the lattice: an investigation at non-zero temperature
A. Barresi, G. Burgio, M. Muller-Preussker
The adjoint SU(2) lattice gauge theory in 3+1 dimensions with the Wilson plaquette action modified by a Z(2) monopole suppression term is reinvestigated with special emphasis on th…
Analytic Smearing of SU(3) Link Variables in Lattice QCD
Colin Morningstar, Mike Peardon
An analytic method of smearing link variables in lattice QCD is proposed and tested. The differentiability of the smearing scheme with respect to the link variables permits the use…
Non perturbative study of QCD on a 2+2 anisotropic lattice
Giuseppe Burgio, Alessandra Feo, Mike Peardon +1
We present preliminary results for a non perturbative determination of the parameters in the action required to restore Lorentz invariance in long distance correlators, using the s…
The Study of the Continuum Limit of the Supersymmetric Ward-Takahashi Identity for N=1 Super Yang-Mills Theory
A. Feo
The one-loop corrections to the supersymmetric Ward-Takahashi identity (WTi) are investigated in the off-shell regime in the Wilson formulation of the discretized N=1 Super Yang-Mi…