期刊
PHYSICAL REVIEW D
卷 101, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.101.014029
关键词
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资金
- U.S. Department of Energy Office of Science, Office of High Energy Physics [DE-SC0012391]
- JSPS KAKENHI [JP17H01133]
- STFC [ST/S000925/1, ST/P000290/1, ST/S000879/1]
- Fermi Research Alliance, LLC (FRA) [DE-AC02-07CH11359]
- STFC [ST/P000290/1, ST/S000925/1, ST/S000879/1] Funding Source: UKRI
- U.S. Department of Energy (DOE) [DE-SC0012391] Funding Source: U.S. Department of Energy (DOE)
Following updates in the compilation of e(+)e(-) -> hadrons data, this work presents reevaluations of the hadronic vacuum polarization contributions to the anomalous magnetic moments of the electron (a(e)), muon (a(mu)) and tau lepton (a(tau)), to the ground-state hyperfine splitting of muonium and also updates the hadronic contributions to the running of the QED coupling at the mass scale of the Z boson, alpha(M-Z(2)). Combining the results for the hadronic vacuum polarization contributions with recent updates for the hadronic light-by-light corrections, the electromagnetic and the weak contributions, the deviation between the measured value of a(mu) and its Standard Model prediction amounts to Delta a(mu) = (28.02 +/- 7.37) x 10(-10), corresponding to a muon g - 2 discrepancy of 3.8 sigma.
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