Complete Tenth-Order QED Contribution to the Muon g-2

2012/05/31 by Tatsumi Aoyama, Masashi Hayakawa, Toichiro Kinoshita +1 · 1 citation
Physics and Astronomy · #hep-ph

paper · pdf · doi:10.1103/physrevlett.109.111808

4 pages, 2 figures; corrected typos, added references; one table is added

arxiv created 2012/08/18 · arxiv updated 2015/06/05

Abstract

We report the result of our calculation of the complete tenth-order QED terms of the muon g-2. Our result is a_μ⁽¹⁰⁾ = 753.29 (1.04) in units of (α/π)⁵, which is about 4.5 s.d. larger than the leading-logarithmic estimate 663 (20). We also improved the precision of the eighth-order QED term of a_μ, obtaining a_μ⁽⁸⁾ = 130.8794(63) in units of (α/π)⁴. The new QED contribution is a_μ(QED) = 116 584 718 951 (80) × 10^-14, which does not resolve the existing discrepancy between the standard-model prediction and measurement of a_μ.

Cited by

• From Higgs physics to lepton flavour violation: current bounds and future prospects for vector-like lepton models