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Title: Higher-order hadronic-vacuum-polarization contribution to the muon g 2 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 Lab. (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. doi: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. doi: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 = {2018},
month = {11}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: https://doi.org/10.1103/PhysRevD.98.094503

Citation Metrics:
Cited by: 3 works
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    Works referencing / citing this record:

    Electromagnetic finite-size effects to the hadronic vacuum polarization
    journal, July 2019


    Light-quark contribution to the leading hadronic vacuum polarization term of the muon g 2 from twisted-mass fermions
    journal, December 2018