skip to main content

DOE PAGESDOE PAGES

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

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:
OSTI Identifier:
1183837
Report Number(s):
BNL--107878-2015-JA
Journal ID: ISSN 0031-9007; PRLTAO; R&D Project: PO-3; TRN: US1600764
Grant/Contract Number:
SC00112704
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)
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS riken bnl research center