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Title: Hadronic Light-by-Light Scattering Contribution to the Muon Anomalous Magnetic Moment from Lattice QCD

Journal Article · · Physical Review Letters
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We report the first result for the hadronic light-by-light scattering contribution to the muon anomalous magnetic moment with all errors systematically controlled. Several ensembles using 2+1 flavors of physical mass Möbius domain-wall fermions, generated by the RBC/UKQCD collaborations, are employed to take the continuum and infinite volume limits of finite volume lattice QED+QCD. We find a μ HLbL = 7.87 ( 3.06 ) stat ( 1.77 ) sys × 10 - 10 . Our value is consistent with previous model results and leaves little room for this notoriously difficult hadronic contribution to explain the difference between the Standard Model and the BNL experiment.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States); Argonne National Laboratory (ANL), Argonne, IL (United States). Argonne Leadership Computing Facility (ALCF)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP); Japan Society for the Promotion of Science (JSPS)
Grant/Contract Number:
SC0010339; SC0011941; SC0012704(BNL); AC02-06CH11357; 16K05317; hp180151; hp190137; SC0012704; JP26400261; JP17H02906
OSTI ID:
1607958
Alternate ID(s):
OSTI ID: 1617673
Report Number(s):
BNL-215902-2020-JAAM; PRLTAO; 132002
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Vol. 124 Journal Issue: 13; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 252 works
Citation information provided by
Web of Science

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Figures / Tables (67)

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Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
Lattice QCD
Magnetic moment
Quantum electrodynamics
Physical Systems
Muons
Path-integral Monte Carlo