Publications
Publication Information
| Title | Higher-order hadronic-vacuum-polarization contribution to the muon g - 2 from lattice QCD |
| Authors | R. Van de Water, Bipasha Chakraborty, Christine Davies, J. Koponen, Peter Lepage |
| JLAB number | JLAB-THY-18-2779 |
| LANL number | 1806.08190 |
| Other number | DOE/OR/23177-4511 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | High Energy Physics (HEP) |
| Other Funding: | U.S. De- partment of Energy under grant PHY13-1622 Fermi Research Alliance, LLC, under Contract No. D Gilmour bequest to the University of Glas- gow and |
|
Journal Compiled for Physical Review D Volume 98 Issue 09 Page(s) 094503 Refereed | |
| Publication Abstract: | We calculate the ${{\rm O}}(\alpha^3)$ hadronic-vacuum-polarization contribution to the muon anomalous magnetic moment for the first time from $ab$-$initio$ lattice QCD. We employ previously-published results for the Taylor coefficients of the renormalized vacuum polarization function that were obtained on four-flavor QCD gauge-field configurations with physical light-quark masses. We obtain $10^{10} a_\mu^{\rm HVP,HO} = -9.3(1.3)$, in agreement with determinations from $e^+e^- \to {\rm hadrons}$ data plus dispersion relations. The total uncertainty is below the target precision of the Muon $g-2$ Experiment. We also provide new expressions suitable for computing the ${{\rm O}}(\alpha^3)$ hadronic vacuum polarization contributions from the renormalized vacuum polarization function ${\widehat\Pi}(q^2)$, or directly from the lattice vector-current correlator in Euclidean space. |
| Experiment Numbers: | other |
| Group: | THEORY CENTER |
| Document: | |
| DOI: | https://doi.org/10.1103/PhysRevD.98.094503 |
| Accepted Manuscript: | PhysRevD.98.094503.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |