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- Max Planck Institute for Mathematics in the SciencesDE139 papers
- Deutsches Elektronen-Synchrotron DESYDE122 papers
- University of RegensburgDE105 papers
- University of EdinburghGB81 papers
- University of LiverpoolGB78 papers
- Centre National de la Recherche ScientifiqueFR76 papers
- Humboldt-Universität zu BerlinDE72 papers
- Joint Institute for Nuclear ResearchRU56 papers
- Forschungszentrum JülichDE54 papers
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- University of CopenhagenDK44 papers
- John von Neumann Institute for ComputingDE42 papers
14 papers · 2 filters
Vacuum Polarisation and Hadronic Contribution to muon g-2 from Lattice QCD
M. Göckeler, R. Horsley, W. Kürzinger +3
We compute the vacuum polarisation on the lattice in quenched QCD using non-perturbatively improved Wilson fermions. Above Q^2 of about 2 GeV^2 the results are very close to the pr…
The nucleon mass in N_f=2 lattice QCD: finite size effects from chiral perturbation theory
A. Ali Khan, T. Bakeyev, M. Göckeler +8
In the framework of relativistic SU(2)_f baryon chiral perturbation theory we calculate the volume dependence of the nucleon mass up to and including O(p^4). Since the parameters i…
The photon propagator in compact QED_{2+1}: the effect of wrapping Dirac strings
M. N. Chernodub, E. -M. Ilgenfritz, A. Schiller
We discuss the influence of closed Dirac strings on the photon propagator in the Landau gauge emerging from a study of the compact U(1) gauge model in 2+1 dimensions. This gauge al…
Structure functions and form factors close to the chiral limit from lattice QCD
T. Bakeyev, D. Galletly, M. Göckeler +12
Results for nucleon matrix elements (arising from moments of structure functions) and form factors from a mixture of runs using Wilson, clover and overlap fermions (both quenched a…
Accelerating Hasenbusch's acceleration of Hybrid Monte Carlo
A. Ali Khan, T. Bakeyev, M. Göckeler +6
Hasenbusch has proposed splitting the pseudo-fermionic action into two parts, in order to speed-up Hybrid Monte Carlo simulations of QCD. We have tested a different splitting, also…
Vacuum polarisation and the muon g-2 in lattice QCD
M. Göckeler, R. Horsley, W. Kürzinger +3
We measure the hadronic contribution to the vacuum polarisation tensor, and use it to estimate the hadronic contribution to (g-2)_mu, the muon anomalous magnetic moment.