https://doi.org/10.1140/epjc/s10052-016-4307-2
Regular Article - Theoretical Physics
Leading-order hadronic contributions to the electron and tau anomalous magnetic moments
1
Institut für Physik, Humboldt-Universität zu Berlin, Newtonstr. 15, 12489, Berlin, Germany
2
NIC, DESY, Platanenallee 6, 15738, Zeuthen, Germany
3
The Cyprus Institute, P.O.Box 27456, 1645, Nicosia, Cyprus
4
Institut für Strahlen- und Kernphysik, Rheinische Friedrich-Wilhelms-Universität Bonn, Nußallee 14-16, 53115, Bonn, Germany
* e-mail: marcus.petschlies@hiskp.uni-bonn.de
Received:
9
February
2016
Accepted:
1
August
2016
Published online:
18
August
2016
The leading hadronic contributions to the anomalous magnetic moments of the electron and the -lepton are determined by a four-flavour lattice QCD computation with twisted mass fermions. The results presented are based on the quark-connected contribution to the hadronic vacuum polarisation function. The continuum limit is taken and systematic uncertainties are quantified. Full agreement with results obtained by phenomenological analyses is found.
© The Author(s), 2016