Higher-order hadronic-vacuum-polarization contribution to the muon from lattice QCD
Abstract
We introduce a new method for calculating the O(α3) hadronic-vacuum-polarization contribution to the muon anomalous magnetic moment from ab initio lattice QCD. We first derive expressions suitable for computing the higher-order contributions either from the renormalized vacuum polarization function Π^(q2) or directly from the lattice vector-current correlator in Euclidean space. We then demonstrate the approach using previously published results for the Taylor coefficients of Π^(q2) that were obtained on four-flavor QCD gauge-field configurations with physical light-quark masses. We obtain 1010aμHVP,HO=-9.3(1.3) in agreement with, but with a larger uncertainty than, determinations from e+e-→hadrons data plus dispersion relations.
- Authors:
- Publication Date:
- Research Org.:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Org.:
- Fermilab Lattice, HPQCD, and MILC Collaborations
- OSTI Identifier:
- 1481454
- Alternate Identifier(s):
- OSTI ID: 1467057; OSTI ID: 1481732
- Report Number(s):
- arXiv:1806.08190; FERMILAB-PUB-18-287-T; JLAB-THY-18-2779; DOE/OR/23177-4511
Journal ID: ISSN 2470-0010; PRVDAQ; 094503
- Grant/Contract Number:
- PHY13-16222; AC02-07CH11359
- Resource Type:
- Published Article
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Name: Physical Review D Journal Volume: 98 Journal Issue: 9; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Citation Formats
Chakraborty, B., Davies, C. T. H., Koponen, J., Lepage, G. P., Van de Water, R. S., and Fermilab Lattice, HPQCD, and MILC Collaborations. Higher-order hadronic-vacuum-polarization contribution to the muon g − 2 from lattice QCD. United States: N. p., 2018.
Web. doi:10.1103/PhysRevD.98.094503.
Chakraborty, B., Davies, C. T. H., Koponen, J., Lepage, G. P., Van de Water, R. S., & Fermilab Lattice, HPQCD, and MILC Collaborations. Higher-order hadronic-vacuum-polarization contribution to the muon g − 2 from lattice QCD. United States. https://doi.org/10.1103/PhysRevD.98.094503
Chakraborty, B., Davies, C. T. H., Koponen, J., Lepage, G. P., Van de Water, R. S., and Fermilab Lattice, HPQCD, and MILC Collaborations. Fri .
"Higher-order hadronic-vacuum-polarization contribution to the muon g − 2 from lattice QCD". United States. https://doi.org/10.1103/PhysRevD.98.094503.
@article{osti_1481454,
title = {Higher-order hadronic-vacuum-polarization contribution to the muon g − 2 from lattice QCD},
author = {Chakraborty, B. and Davies, C. T. H. and Koponen, J. and Lepage, G. P. and Van de Water, R. S. and Fermilab Lattice, HPQCD, and MILC Collaborations},
abstractNote = {We introduce a new method for calculating the O(α3) hadronic-vacuum-polarization contribution to the muon anomalous magnetic moment from ab initio lattice QCD. We first derive expressions suitable for computing the higher-order contributions either from the renormalized vacuum polarization function Π^(q2) or directly from the lattice vector-current correlator in Euclidean space. We then demonstrate the approach using previously published results for the Taylor coefficients of Π^(q2) that were obtained on four-flavor QCD gauge-field configurations with physical light-quark masses. We obtain 1010aμHVP,HO=-9.3(1.3) in agreement with, but with a larger uncertainty than, determinations from e+e-→hadrons data plus dispersion relations.},
doi = {10.1103/PhysRevD.98.094503},
journal = {Physical Review D},
number = 9,
volume = 98,
place = {United States},
year = {Fri Nov 09 00:00:00 EST 2018},
month = {Fri Nov 09 00:00:00 EST 2018}
}
https://doi.org/10.1103/PhysRevD.98.094503
Web of Science
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