TY - JOUR
T1 - Hadronic Vacuum Polarization for the Muon g-2 from Lattice QCD: Long-Distance and Full Light-Quark Connected Contribution
AU - Bazavov, Alexei
AU - Bernard, Claude
AU - Clarke, David Anthony
AU - Davies, Christine
AU - DeTar, Carleton
AU - El-Khadra, Aida X.
AU - Sánchez, María Elvira Gámiz
AU - Gottlieb, Steven
AU - Grebe, Anthony V.
AU - Hostetler, Leon
AU - Jay, William
AU - Jeong, Hwancheol
AU - Kronfeld, Andreas
AU - Lahert, Shaun
AU - Laiho, Jack
AU - Lepage, Gerard
AU - Lynch, Michael
AU - Lytle, Andrew
AU - McNeile, Craig
AU - NEIL, ETHAN
AU - Peterson, Curtis
AU - Simone, James
AU - Sitison, Jacob W
AU - Van de Water, Ruth S.
AU - Avilés-Casco, Alejandro Vaquero
AU - McNeile, Craig
PY - 2025/7/1
Y1 - 2025/7/1
N2 - We present results for the dominant light-quark connected contribution to the long-distance window of the hadronic vacuum polarization (HVP) contribution to the muon g-2 from lattice quantum chromodynamics. Specifically, with a new determination of the lattice scale on MILC's physical-mass HISQ ensembles, using the Ω^{-} baryon mass, we obtain a result of a_{μ}^{ll,LD}(conn)=400.2(2.3)_{stat}(3.7)_{syst}[4.3]_{total}×10^{-10}. Summing this result with our recent determinations of the light-quark connected contributions to the short- and intermediate-distance windows, we obtain a subpercent precision determination of the light-quark-connected contribution to HVP of a_{μ}^{ll}(conn)=655.2(2.3)_{stat}(3.9)_{syst}[4.5]_{total}×10^{-10}. Finally, as a consistency check, we verify that an independent analysis of the full contribution is in agreement with the sum of individual windows. We discuss our future plans for improvements of our HVP calculations to meet the target precision of the Fermilab g-2 experiment.
AB - We present results for the dominant light-quark connected contribution to the long-distance window of the hadronic vacuum polarization (HVP) contribution to the muon g-2 from lattice quantum chromodynamics. Specifically, with a new determination of the lattice scale on MILC's physical-mass HISQ ensembles, using the Ω^{-} baryon mass, we obtain a result of a_{μ}^{ll,LD}(conn)=400.2(2.3)_{stat}(3.7)_{syst}[4.3]_{total}×10^{-10}. Summing this result with our recent determinations of the light-quark connected contributions to the short- and intermediate-distance windows, we obtain a subpercent precision determination of the light-quark-connected contribution to HVP of a_{μ}^{ll}(conn)=655.2(2.3)_{stat}(3.9)_{syst}[4.5]_{total}×10^{-10}. Finally, as a consistency check, we verify that an independent analysis of the full contribution is in agreement with the sum of individual windows. We discuss our future plans for improvements of our HVP calculations to meet the target precision of the Fermilab g-2 experiment.
UR - http://inspirehep.net/record/2862618
UR - https://pearl.plymouth.ac.uk/secam-research/2141/
U2 - 10.1103/d583-yhfs
DO - 10.1103/d583-yhfs
M3 - Article
SN - 0031-9007
VL - 135
SP - 11901
JO - Physical Review Letters
JF - Physical Review Letters
IS - 1
M1 - 011901
ER -