Abstract
We report the result of our calculation of the complete tenth-order QED terms of the muon . Our result is (1.04) in units of , which is about 4.5 s.d. larger than the leading-logarithmic estimate 663(20). We also improve the precision of the eighth-order QED term of , obtaining (63) in units of . The new QED contribution is , which does not resolve the existing discrepancy between the standard-model prediction and measurement of .
- Received 24 May 2012
DOI:https://doi.org/10.1103/PhysRevLett.109.111808
© 2012 American Physical Society