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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); Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
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; 1678827
Grant/Contract Number:  
AC02-07CH11359; PHY13-16222
Resource Type:
Journal Article: Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 98; Journal Issue: 9; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
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., and Van de Water, R. S.. 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.. Higher-order hadronic-vacuum-polarization contribution to the muon g−2 from lattice QCD. United States. doi:10.1103/PhysRevD.98.094503.
Chakraborty, B., Davies, C. T. H., Koponen, J., Lepage, G. P., and Van de Water, R. S.. Thu . "Higher-order hadronic-vacuum-polarization contribution to the muon g−2 from lattice QCD". United States. doi: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.},
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},
issn = {2470-0010},
number = 9,
volume = 98,
place = {United States},
year = {2018},
month = {11}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1103/PhysRevD.98.094503

Citation Metrics:
Cited by: 1 work
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