Speaker
Sebastian Lahrtz
(Johannes Gutenberg-University Mainz)
Description
Isospin-breaking corrections to the hadronic vacuum polarization contribution to the muon g-2 are one of the largest contribution to the error in the latest lattice calculations. To reach the precision of the direct measurement of the muon anomalous magnetic moment, it is therefore crucial to reduce the uncertainties contributing to the total error of hadronic vacuum polarization. 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 which are traditionally difficult to obtain from the lattice, can now be measured with reasonable numerical effort.
Author
Sebastian Lahrtz
(Johannes Gutenberg-University Mainz)