| Literature DB >> 30085720 |
T Blum1, P A Boyle2, V Gülpers3, T Izubuchi4,5, L Jin1,5, C Jung4, A Jüttner3, C Lehner4, A Portelli2, J T Tsang2.
Abstract
We present a first-principles lattice QCD+QED calculation at physical pion mass of the leading-order hadronic vacuum polarization contribution to the muon anomalous magnetic moment. The total contribution of up, down, strange, and charm quarks including QED and strong isospin breaking effects is a_{μ}^{HVP LO}=715.4(18.7)×10^{-10}. By supplementing lattice data for very short and long distances with R-ratio data, we significantly improve the precision to a_{μ}^{HVP LO}=692.5(2.7)×10^{-10}. This is the currently most precise determination of a_{μ}^{HVP LO}.Year: 2018 PMID： 30085720 DOI： 10.1103/PhysRevLett.121.022003
Source DB: PubMed Journal: Phys Rev Lett ISSN： 0031-9007 Impact factor: 9.161