Evaluation of the three-flavor quark-disconnected contribution to the muon anomalous magnetic moment from experimental data
Abstract
We point out that the sum of the strange-quark-connected and full three-flavor quark-disconnected contributions to the leading-order hadronic vacuum polarization contribution, $$a$$$^{LO,HVP}_{μ}$$, to the anomalous magnetic moment of the muon is a physical observable, and we provide a data-based determination of this quantity in the isospin limit. The result, 40.1(1.5) × 10–10 or 38.7(2.0) × 10–10, depending on which data compilation is used, serves as a target of comparison for lattice calculations of the same isospin-limit combination. Subtracting from this result the average of lattice determinations of the strange-quark-connected contribution, one also obtains an alternate determination of the isospin-limit three-flavor disconnected contribution to $$a$$$^{LO,HVP}_{μ}$$. The result of this determination, –13.3(1.5) × 10–10 or –14.6(2.0) × 10–10, depending on which data compilation is used, agrees well and is competitive with the most precise current lattice determination.
- Authors:
- Publication Date:
- Research Org.:
- San Francisco State Univ., CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- OSTI Identifier:
- 1867902
- Alternate Identifier(s):
- OSTI ID: 1901603
- Grant/Contract Number:
- SC0013682
- Resource Type:
- Published Article
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Name: Physical Review D Journal Volume: 105 Journal Issue: 9; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Magnetic moment; Muons; Lattice QCD
Citation Formats
Boito, Diogo, Golterman, Maarten, Maltman, Kim, and Peris, Santiago. Evaluation of the three-flavor quark-disconnected contribution to the muon anomalous magnetic moment from experimental data. United States: N. p., 2022.
Web. doi:10.1103/PhysRevD.105.093003.
Boito, Diogo, Golterman, Maarten, Maltman, Kim, & Peris, Santiago. Evaluation of the three-flavor quark-disconnected contribution to the muon anomalous magnetic moment from experimental data. United States. https://doi.org/10.1103/PhysRevD.105.093003
Boito, Diogo, Golterman, Maarten, Maltman, Kim, and Peris, Santiago. Mon .
"Evaluation of the three-flavor quark-disconnected contribution to the muon anomalous magnetic moment from experimental data". United States. https://doi.org/10.1103/PhysRevD.105.093003.
@article{osti_1867902,
title = {Evaluation of the three-flavor quark-disconnected contribution to the muon anomalous magnetic moment from experimental data},
author = {Boito, Diogo and Golterman, Maarten and Maltman, Kim and Peris, Santiago},
abstractNote = {We point out that the sum of the strange-quark-connected and full three-flavor quark-disconnected contributions to the leading-order hadronic vacuum polarization contribution, $a$$^{LO,HVP}_{μ}$, to the anomalous magnetic moment of the muon is a physical observable, and we provide a data-based determination of this quantity in the isospin limit. The result, 40.1(1.5) × 10–10 or 38.7(2.0) × 10–10, depending on which data compilation is used, serves as a target of comparison for lattice calculations of the same isospin-limit combination. Subtracting from this result the average of lattice determinations of the strange-quark-connected contribution, one also obtains an alternate determination of the isospin-limit three-flavor disconnected contribution to $a$$^{LO,HVP}_{μ}$. The result of this determination, –13.3(1.5) × 10–10 or –14.6(2.0) × 10–10, depending on which data compilation is used, agrees well and is competitive with the most precise current lattice determination.},
doi = {10.1103/PhysRevD.105.093003},
journal = {Physical Review D},
number = 9,
volume = 105,
place = {United States},
year = {Mon May 16 00:00:00 EDT 2022},
month = {Mon May 16 00:00:00 EDT 2022}
}
https://doi.org/10.1103/PhysRevD.105.093003
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