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5 papers · 2 filters
Two-point functions of quenched lattice QCD in Numerical Stochastic Perturbation Theory. (I) The ghost propagator in Landau gauge
F. Di Renzo, E. -M. Ilgenfritz, H. Perlt +2
This is the first of a series of two papers on the perturbative computation of the ghost and gluon propagators in SU(3) Lattice Gauge Theory. Our final aim is to eventually compare…
Results from 2+1 flavours of SLiNC fermions
W. Bietenholz, V. Bornyakov, N. Cundy +12
QCD results are presented for a 2+1 flavour fermion clover action (which we call the SLiNC action). A method of tuning the quark masses to their physical values is discussed. In th…
The lattice ghost propagator in Landau gauge up to three loops using Numerical Stochastic Perturbation Theory
F. Di Renzo, E. -M. Ilgenfritz, H. Perlt +2
We complete our high-accuracy studies of the lattice ghost propagator in Landau gauge in Numerical Stochastic Perturbation Theory up to three loops. We present a systematic strateg…
Wilson loops in very high order lattice perturbation theory
E. -M. Ilgenfritz, Y. Nakamura, H. Perlt +3
We calculate Wilson loops of various sizes up to loop order for lattice sizes of using the technique of Numerical Stochastic Perturbation Theory in que…
Non-perturbative improvement of stout-smeared three flavour clover fermions
N. Cundy, M. Göckeler, R. Horsley +11
We discuss a 3-flavour lattice QCD action with clover improvement in which the fermion matrix has single level stout smearing for the hopping terms together with unsmeared links fo…