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Title: Hadronic light-by-light scattering contribution to the muon anomalous magnetic moment from lattice QCD

Abstract

The form factor that yields the light-by-light scattering contribution to the muon anomalous magnetic moment is computed in lattice QCD+QED and QED. A non-perturbative treatment of QED is used and is checked against perturbation theory. The hadronic contribution is calculated for unphysical quark and muon masses, and only the diagram with a single quark loop is computed. Statistically significant signals are obtained. Initial results appear promising, and the prospect for a complete calculation with physical masses and controlled errors is discussed.

Authors:
 [1];  [2];  [3];  [4]
  1. Univ. of Connecticut, Storrs, CT (United States); Brookhaven National Lab., Upton, NY (United States)
  2. Univ. of Connecticut, Storrs, CT (United States)
  3. Nagoya Univ., Nagoya (Japan); RIKEN, Saitama (Japan)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1183837
Alternate Identifier(s):
OSTI ID: 1180333
Report Number(s):
BNL-107878-2015-JA
Journal ID: ISSN 0031-9007; PRLTAO; R&D Project: PO-3; TRN: US1600764
Grant/Contract Number:  
SC00112704; FG02-13ER41989; AC02-98CH10886; 22224003; 25610053; 22540301; 23105715; 26400261
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 114; Journal Issue: 1; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; riken bnl research center

Citation Formats

Blum, Thomas, Chowdhury, Saumitra, Hayakawa, Masashi, and Izubuchi, Taku. Hadronic light-by-light scattering contribution to the muon anomalous magnetic moment from lattice QCD. United States: N. p., 2015. Web. doi:10.1103/PhysRevLett.114.012001.
Blum, Thomas, Chowdhury, Saumitra, Hayakawa, Masashi, & Izubuchi, Taku. Hadronic light-by-light scattering contribution to the muon anomalous magnetic moment from lattice QCD. United States. doi:10.1103/PhysRevLett.114.012001.
Blum, Thomas, Chowdhury, Saumitra, Hayakawa, Masashi, and Izubuchi, Taku. Wed . "Hadronic light-by-light scattering contribution to the muon anomalous magnetic moment from lattice QCD". United States. doi:10.1103/PhysRevLett.114.012001. https://www.osti.gov/servlets/purl/1183837.
@article{osti_1183837,
title = {Hadronic light-by-light scattering contribution to the muon anomalous magnetic moment from lattice QCD},
author = {Blum, Thomas and Chowdhury, Saumitra and Hayakawa, Masashi and Izubuchi, Taku},
abstractNote = {The form factor that yields the light-by-light scattering contribution to the muon anomalous magnetic moment is computed in lattice QCD+QED and QED. A non-perturbative treatment of QED is used and is checked against perturbation theory. The hadronic contribution is calculated for unphysical quark and muon masses, and only the diagram with a single quark loop is computed. Statistically significant signals are obtained. Initial results appear promising, and the prospect for a complete calculation with physical masses and controlled errors is discussed.},
doi = {10.1103/PhysRevLett.114.012001},
journal = {Physical Review Letters},
number = 1,
volume = 114,
place = {United States},
year = {2015},
month = {1}
}

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