Speaker
Sebastian Lahrtz
Description
Isospin-breaking corrections to the hadronic vacuum polarisation
contribution to the muon g-2 dominate the error of recent lattice
calculations. It is therefore crucial to reduce the uncertainties
coming from these contributions to reach the overall target
precision. I will present preliminary results from a new calculational
setup that improves the statistical precision for constant numerical
cost. Additionally, contributions coming from disconnected diagrams,
on which only very few lattice calculations exist, can now be computed
with reasonable numerical effort.