EPJ Web of Conferences 218, 01003 (2019)
https://doi.org/10.1051/epjconf/201921801003

Variations on Photon Vacuum Polarization

¹ Deutsches Elektronen-Synchrotron (DESY), Platanenallee 6, D-15738 Zeuthen, Germany
² Humboldt-Universität zu Berlin, Institut für Physik, Newtonstrasse 15, D-12489 Berlin, Germany

^* e-mail: fjeger@physik.hu-berlin.de

Published online: 18 October 2019

Abstract

I provide updates for the theoretical predictions of the muon and electron anomalous magnetic moments, for the shift in the fine structure constant α(MZ )and for the weak mixing parameter ${{\displaystyle \sin }}^2{{\displaystyle \Theta }}_w({{\displaystyle M}}_Z)$. Phenomenological results for Euclidean time correlators, the key objects in the lattice QCD approach to hadronic vacuum polarization, are briefly considered. Furthermore,I present a list of isospin breaking and electromagnetic corrections for the lepton moments, which may be used to supplement lattice QCD results obtained in the isospin limit and without the e.m. corrections.