9 papers · 1 filter
Nucleon structure in terms of OPE with non-perturbative Wilson coefficients
W. Bietenholz, N. Cundy, M. Gockeler +7
Lattice calculations could boost our understanding of Deep Inelastic Scattering by evaluating moments of the Nucleon Structure Functions. To this end we study the product of electr…
Perturbative determination of for plaquette and Symanzik gauge action and stout link clover fermions
R. Horsley, H. Perlt, P. E. L. Rakow +2
Using plaquette and Symanzik improved gauge action and stout link clover fermions we determine the improvement coefficient in one-loop lattice perturbation theory from the…
A status report of the QCDSF Project
Meinulf Göckeler, Roger Horsley, Yoshifumi Nakamura +8
We report about on-going simulations of lattice QCD. We use a tadpole improved Symanzik gauge action and stout link smeared Wilson fermions with a clover term. We employ…
Distribution Amplitudes of Vector Mesons
V. M. Braun, D. Brömmel, M. Göckeler +12
Results are presented for the lowest moment of the distribution amplitude for the K-star vector meson. Both longitudinal and transverse moments are investigated. We use two flavour…
Perturbative determination of with Symanzik improved gauge action and stout smearing
R. Horsley, H. Perlt, P. E. L. Rakow +2
We determine the improvement factor in one-loop lattice perturbation theory for the plaquette and Symanzik improved gauge actions. The fermionic action is ${\mathcal{O}(a)…
The lattice gluon propagator in stochastic perturbation theory
E. -M. Ilgenfritz, H. Perlt, A. Schiller
We calculate loop contributions up to four loops to the Landau gauge gluon propagator in numerical stochastic perturbation theory. For different lattice volumes we carefully extrap…