33 citations · 154 across the 13 of their papers we have counts for
13 papers
Electromagnetic vertex function of the pion at T > 0
J. van der heide, J. H. Koch, E. Laermann
The matrix element of the electromagnetic current between pion states is calculated in quenched lattice QCD at a temperature of . The nonperturbatively improved Sheik…
The pion form factor on the lattice at zero and finite temperature
J. van der Heide, J. H. Koch, E. Laermann
We calculate the electromagnetic form factor of the pion in quenched lattice QCD. The non-perturbatively improved Sheikoleslami-Wohlert lattice action is used together with the con…
Pion structure from improved lattice QCD: form factor and charge radius at low masses
J. van der Heide, J. Koch, E. Laermann
The charge form factor of the pion is calculated in lattice QCD. The non-perturbatively improved Sheikholeslami-Wohlert action is used together with the improved v…
The pion form factor in improved lattice QCD
J. van der Heide, J. H. Koch, E. Laermann +1
We calculate the electromagnetic form factor of the pion in lattice gauge theory. The non-perturbatively improved Sheikoleslami-Wohlert lattice action is used together with the O(a…
Hadron structure and the limitations of phenomenological models in electromagnetic reactions
J. H. Koch, V. Pascalutsa, S. Scherer
The description of electromagnetic reactions at intermediate energies, such as pion electroproduction or (virtual) Compton scattering, traditionally starts from covariant tree-leve…
The BFKL Pomeron with running coupling constant: how much of its hard nature survives?
L. P. A. Haakman, O. K. Kancheli, J. H. Koch
We discuss the BFKL equation with a running gauge coupling and identify in its solutions the contributions originating from different transverse momentum scales. We show that for a…