155 citations · 727 across the 19 of their papers we have counts for
10 papers · 2 filters
Transverse spin structure of the nucleon from lattice QCD simulations
M. Göckeler, Ph. Hägler, R. Horsley +7
We present the first calculation in lattice QCD of the lowest two moments of transverse spin densities of quarks in the nucleon. They encode correlations between quark spin and orb…
Nucleon Form Factors: Probing the Chiral Limit
M. Gockeler, Ph. Hageler, R. Horsley +9
The electromagnetic form factors provide important hints for the internal structure of the nucleon and continue to be of major interest for experimentalists. For an intermediate ra…
Simulating at Realistic Quark Masses: Pseudoscalar Decay Constants and Chiral Logarithms
M. Göckeler, R. Horsley, Y. Nakamura +7
Due to improvements in computer performance and algorithms, the rapidly increasing cost for unquenched Wilson-type fermions with lighter quarks has been ameliorated and new simulat…
Distribution Amplitudes of Pseudoscalar Mesons
V. M. Braun, M. Gockeler, R. Horsley +8
We present results for the first two moments of the distribution amplitudes of pseudoscalar mesons. Using two flavors of non-perturbatively improved clover fermions and non-perturb…
Probing Nucleon Structure on the Lattice
M. Göckeler, Ph. Hägler, R. Horsley +8
The QCDSF/UKQCD collaboration has an ongoing program to calculate nucleon matrix elements with two flavours of dynamical O(a) improved Wilson fermions. Here we present recent resul…
The pion form factor from lattice QCD with two dynamical flavours
D. Brömmel, M. Diehl, M. Göckeler +9
We compute the electromagnetic form factor of the pion using non-perturbatively O(a) improved Wilson fermions. The calculations are done for a wide range of pion masses and lattice…