Strong-Isospin-Breaking Correction to the Muon Anomalous Magnetic Moment from Lattice QCD at the Physical Point
Abstract
All lattice-QCD calculations of the hadronic-vacuum-polarization contribution to the muon’s anomalous magnetic moment to date have been performed with degenerate up- and down-quark masses. Here we calculate directly the strong-isospin-breaking correction to $${a}_{{\mu}}^{\mathrm{HVP}}$$ for the first time with physical values of $${m}_{u}$$ and $${m}_{d}$$ and dynamical $$u$$, $$d$$, $$s$$, and $$c$$ quarks, thereby removing this important source of systematic uncertainty. We obtain a relative shift to be applied to lattice-QCD results obtained with degenerate light-quark masses of $${\delta}{a}_{{\mu}}^{\mathrm{HVP},{m}_{u}{\ne}{m}_{d}}=+1.5(7)$$%, in agreement with estimates from phenomenology.
- Authors:
- more »
- Publication Date:
- Research Org.:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Org.:
- Fermilab Lattice, HPQCD, and MILC Collaborations
- OSTI Identifier:
- 1432913
- Alternate Identifier(s):
- OSTI ID: 1433863
- Report Number(s):
- FERMILAB-PUB-17-486-T; arXiv:1710.11212
Journal ID: ISSN 0031-9007; PRLTAO; 152001
- Grant/Contract Number:
- AC05-06OR23177; SC0010120; SC0015655; SC0009998; SC0010005; FG02-13ER41976; SC0012704; AC02-07CH11359
- Resource Type:
- Published Article
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Name: Physical Review Letters Journal Volume: 120 Journal Issue: 15; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; muons; magnetic moment; lattice QCD
Citation Formats
Chakraborty, B., Davies, C. T. H., DeTar, C., El-Khadra, A. X., Gámiz, E., Gottlieb, Steven, Hatton, D., Koponen, J., Kronfeld, A. S., Laiho, J., Lepage, G. P., Liu, Yuzhi, Mackenzie, P. B., McNeile, C., Neil, E. T., Simone, J. N., Sugar, R., Toussaint, D., Van de Water, R. S., Vaquero, A., and Fermilab Lattice, HPQCD, and MILC Collaborations. Strong-Isospin-Breaking Correction to the Muon Anomalous Magnetic Moment from Lattice QCD at the Physical Point. United States: N. p., 2018.
Web. doi:10.1103/PhysRevLett.120.152001.
Chakraborty, B., Davies, C. T. H., DeTar, C., El-Khadra, A. X., Gámiz, E., Gottlieb, Steven, Hatton, D., Koponen, J., Kronfeld, A. S., Laiho, J., Lepage, G. P., Liu, Yuzhi, Mackenzie, P. B., McNeile, C., Neil, E. T., Simone, J. N., Sugar, R., Toussaint, D., Van de Water, R. S., Vaquero, A., & Fermilab Lattice, HPQCD, and MILC Collaborations. Strong-Isospin-Breaking Correction to the Muon Anomalous Magnetic Moment from Lattice QCD at the Physical Point. United States. https://doi.org/10.1103/PhysRevLett.120.152001
Chakraborty, B., Davies, C. T. H., DeTar, C., El-Khadra, A. X., Gámiz, E., Gottlieb, Steven, Hatton, D., Koponen, J., Kronfeld, A. S., Laiho, J., Lepage, G. P., Liu, Yuzhi, Mackenzie, P. B., McNeile, C., Neil, E. T., Simone, J. N., Sugar, R., Toussaint, D., Van de Water, R. S., Vaquero, A., and Fermilab Lattice, HPQCD, and MILC Collaborations. Thu .
"Strong-Isospin-Breaking Correction to the Muon Anomalous Magnetic Moment from Lattice QCD at the Physical Point". United States. https://doi.org/10.1103/PhysRevLett.120.152001.
@article{osti_1432913,
title = {Strong-Isospin-Breaking Correction to the Muon Anomalous Magnetic Moment from Lattice QCD at the Physical Point},
author = {Chakraborty, B. and Davies, C. T. H. and DeTar, C. and El-Khadra, A. X. and Gámiz, E. and Gottlieb, Steven and Hatton, D. and Koponen, J. and Kronfeld, A. S. and Laiho, J. and Lepage, G. P. and Liu, Yuzhi and Mackenzie, P. B. and McNeile, C. and Neil, E. T. and Simone, J. N. and Sugar, R. and Toussaint, D. and Van de Water, R. S. and Vaquero, A. and Fermilab Lattice, HPQCD, and MILC Collaborations},
abstractNote = {All lattice-QCD calculations of the hadronic-vacuum-polarization contribution to the muon’s anomalous magnetic moment to date have been performed with degenerate up- and down-quark masses. Here we calculate directly the strong-isospin-breaking correction to ${a}_{{\mu}}^{\mathrm{HVP}}$ for the first time with physical values of ${m}_{u}$ and ${m}_{d}$ and dynamical $u$, $d$, $s$, and $c$ quarks, thereby removing this important source of systematic uncertainty. We obtain a relative shift to be applied to lattice-QCD results obtained with degenerate light-quark masses of ${\delta}{a}_{{\mu}}^{\mathrm{HVP},{m}_{u}{\ne}{m}_{d}}=+1.5(7)$%, in agreement with estimates from phenomenology.},
doi = {10.1103/PhysRevLett.120.152001},
journal = {Physical Review Letters},
number = 15,
volume = 120,
place = {United States},
year = {Thu Apr 12 00:00:00 EDT 2018},
month = {Thu Apr 12 00:00:00 EDT 2018}
}
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https://doi.org/10.1103/PhysRevLett.120.152001
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Works referenced in this record:
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Works referencing / citing this record:
Lattice calculation of the hadronic leading order contribution to the muon g − 2
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Opportunities for Lattice QCD in quark and lepton flavor physics
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