Lattice Determination of the Anomalous Magnetic Moment of the Muon

Abstract

We compute the leading hadronic contribution to the anomalous magnetic moment of the muon a_mu^HLO using two dynamical flavours of non-perturbatively O(a) improved Wilson fermions. By applying partially twisted boundary conditions we are able to improve the momentum resolution of the vacuum polarisation, an important ingredient for the determination of the leading hadronic contribution. We check systematic uncertainties by studying several ensembles, which allows us to discuss finite size effects and lattice artefacts. The chiral behavior of a_mu^HLO turns out to be non-trivial, especially for small pion masses.

7 pages, 3 figures, 1 table, contribution to LATTICE 2011

References in corpus (4)

• Two-flavor QCD correction to lepton magnetic moments at leading-order in the electromagnetic coupling
• Lattice Determination of the Hadronic Contribution to the Muon $g-2$ using Dynamical Domain Wall Fermions
• On cutoff effects in lattice QCD from short to long distances
• Non-perturbative improvement of quark mass renormalization in two-flavour lattice QCD

Cited by in corpus (1)

• Towards a precise lattice determination of the leading hadronic contribution to (g-2)_mu