Four-flavour leading-order hadronic contribution to the muon anomalous magnetic moment
Abstract
We present a four-flavour lattice calculation of the leading-order hadronic vacuum polarisation contribution to the anomalous magnetic moment of the muon, aμhvp, arising from quark-connected Feynman graphs. It is based on ensembles featuring Nf=2+1+1 dynamical twisted mass fermions generated by the European Twisted Mass Collaboration (ETMC). Several light quark masses are used in order to yield a controlled extrapolation to the physical pion mass. We employ three lattice spacings to examine lattice artefacts and several different volumes to check for finite-size effects. Including the complete first two generations of quarks allows for a direct comparison with phenomenological determinations of a μhvp. The final result involving an estimate of the systematic uncertainty aμhvp=6.74 (21)(18) 10-8 shows a good overall agreement with these computations.
- Authors:
-
- Humboldt Univ. zu Berlin, Berlin (Germany)
- High Energy Accelerator Research Organization (KEK), Tsukuba (Japan)
- Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany); Univ. of Cyprus, Nicosia (Cyprus)
- The Cyprus Institute, Nicosia (Cyprus)
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Publication Date:
- Research Org.:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- Contributing Org.:
- The ETM collaboration
- OSTI Identifier:
- 1121883
- Report Number(s):
- JLAB-THY-13-1771; DOE/OR/23177-2695; arXiv:1308.4327
Journal ID: ISSN 1029-8479; TRN: US1500450
- Grant/Contract Number:
- AC05-06OR23177
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Journal of High Energy Physics (Online)
- Additional Journal Information:
- Journal Name: Journal of High Energy Physics (Online); Journal Volume: 2014; Journal Issue: 2; Journal ID: ISSN 1029-8479
- Publisher:
- Springer Berlin
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; lattice; muon g-2; muon anomaly; hadronic contribution
Citation Formats
Burger, Florian, Feng, Xu, Hotzel, Grit, Jansen, Karl, Petschlies, Marcus, and Renner, Dru B. Four-flavour leading-order hadronic contribution to the muon anomalous magnetic moment. United States: N. p., 2014.
Web. doi:10.1007/JHEP02(2014)099.
Burger, Florian, Feng, Xu, Hotzel, Grit, Jansen, Karl, Petschlies, Marcus, & Renner, Dru B. Four-flavour leading-order hadronic contribution to the muon anomalous magnetic moment. United States. https://doi.org/10.1007/JHEP02(2014)099
Burger, Florian, Feng, Xu, Hotzel, Grit, Jansen, Karl, Petschlies, Marcus, and Renner, Dru B. Mon .
"Four-flavour leading-order hadronic contribution to the muon anomalous magnetic moment". United States. https://doi.org/10.1007/JHEP02(2014)099. https://www.osti.gov/servlets/purl/1121883.
@article{osti_1121883,
title = {Four-flavour leading-order hadronic contribution to the muon anomalous magnetic moment},
author = {Burger, Florian and Feng, Xu and Hotzel, Grit and Jansen, Karl and Petschlies, Marcus and Renner, Dru B.},
abstractNote = {We present a four-flavour lattice calculation of the leading-order hadronic vacuum polarisation contribution to the anomalous magnetic moment of the muon, aμhvp, arising from quark-connected Feynman graphs. It is based on ensembles featuring Nf=2+1+1 dynamical twisted mass fermions generated by the European Twisted Mass Collaboration (ETMC). Several light quark masses are used in order to yield a controlled extrapolation to the physical pion mass. We employ three lattice spacings to examine lattice artefacts and several different volumes to check for finite-size effects. Including the complete first two generations of quarks allows for a direct comparison with phenomenological determinations of a μhvp. The final result involving an estimate of the systematic uncertainty aμhvp=6.74 (21)(18) 10-8 shows a good overall agreement with these computations.},
doi = {10.1007/JHEP02(2014)099},
journal = {Journal of High Energy Physics (Online)},
number = 2,
volume = 2014,
place = {United States},
year = {Mon Feb 24 00:00:00 EST 2014},
month = {Mon Feb 24 00:00:00 EST 2014}
}
Web of Science
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