Connected and leading disconnected hadronic light-by-light contribution to the muon anomalous magnetic moment with a physical pion mass
Abstract
We report a lattice QCD calculation of the hadronic light-by-light contribution to the muon anomalous magnetic moment at a physical pion mass. The calculation includes the connected diagrams and the leading, quark-line-disconnected diagrams. We incorporate algorithmic improvements developed in our previous work. The calculation was performed on the 483 × 96 ensemble generated with a physical pion mass and a 5.5 fm spatial extent by the RBC and UKQCD Collaborations using the chiral, domain wall fermion formulation. We find aHLbLμ = 5.35(1.35) × 10–10, where the error is statistical only. The finite-volume and finite lattice-spacing errors could be quite large and are the subject of ongoing research. Finally, the omitted disconnected graphs, while expected to give a correction of order 10%, also need to be computed.
- Authors:
-
- Univ. of Connecticut, Storrs, CT (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)
- Columbia Univ., New York, NY (United States)
- Nagoya Univ., Nagoya (Japan); RIKEN, Saitama (Japan)
- 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), High Energy Physics (HEP)
- OSTI Identifier:
- 1354628
- Alternate Identifier(s):
- OSTI ID: 1339018
- Report Number(s):
- BNL-113726-2017-JA
Journal ID: ISSN 0031-9007; PRLTAO; KA2401012
- Grant/Contract Number:
- SC00112704; FG02-92ER40716; SC0011941; AC02-06CH11357; AC02-98CH10886
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 118; Journal Issue: 2; 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; lattice; QCD; pion; quark; muon
Citation Formats
Blum, Thomas, Christ, Norman, Hayakawa, Masashi, Izubuchi, Taku, Jin, Luchang, Jung, Chulwoo, and Lehner, Christoph. Connected and leading disconnected hadronic light-by-light contribution to the muon anomalous magnetic moment with a physical pion mass. United States: N. p., 2017.
Web. doi:10.1103/PhysRevLett.118.022005.
Blum, Thomas, Christ, Norman, Hayakawa, Masashi, Izubuchi, Taku, Jin, Luchang, Jung, Chulwoo, & Lehner, Christoph. Connected and leading disconnected hadronic light-by-light contribution to the muon anomalous magnetic moment with a physical pion mass. United States. https://doi.org/10.1103/PhysRevLett.118.022005
Blum, Thomas, Christ, Norman, Hayakawa, Masashi, Izubuchi, Taku, Jin, Luchang, Jung, Chulwoo, and Lehner, Christoph. Wed .
"Connected and leading disconnected hadronic light-by-light contribution to the muon anomalous magnetic moment with a physical pion mass". United States. https://doi.org/10.1103/PhysRevLett.118.022005. https://www.osti.gov/servlets/purl/1354628.
@article{osti_1354628,
title = {Connected and leading disconnected hadronic light-by-light contribution to the muon anomalous magnetic moment with a physical pion mass},
author = {Blum, Thomas and Christ, Norman and Hayakawa, Masashi and Izubuchi, Taku and Jin, Luchang and Jung, Chulwoo and Lehner, Christoph},
abstractNote = {We report a lattice QCD calculation of the hadronic light-by-light contribution to the muon anomalous magnetic moment at a physical pion mass. The calculation includes the connected diagrams and the leading, quark-line-disconnected diagrams. We incorporate algorithmic improvements developed in our previous work. The calculation was performed on the 483 × 96 ensemble generated with a physical pion mass and a 5.5 fm spatial extent by the RBC and UKQCD Collaborations using the chiral, domain wall fermion formulation. We find aHLbLμ = 5.35(1.35) × 10–10, where the error is statistical only. The finite-volume and finite lattice-spacing errors could be quite large and are the subject of ongoing research. Finally, the omitted disconnected graphs, while expected to give a correction of order 10%, also need to be computed.},
doi = {10.1103/PhysRevLett.118.022005},
journal = {Physical Review Letters},
number = 2,
volume = 118,
place = {United States},
year = {Wed Jan 11 00:00:00 EST 2017},
month = {Wed Jan 11 00:00:00 EST 2017}
}
Web of Science
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