STI Publications - View Publication Form #12536
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Publication Information
| Title | Four-flavor leading 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, a_mu^hvp, 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_mu^hvp. Our final result involving an estimate of the systematic uncertainty a_mu^hvp=6.74 (21)(18) 10^-8 shows a good overall agreement with these computations. | ||||
| Author(s) | Florian Burger, X. Feng, Grit Hotzel, K. Jansen, Marcus Petschlies, Dru Renner | ||||
| Publication Date | February 2014 | ||||
| Document Type | Journal Article | ||||
| Primary Institution | Deutsches Elektronen Synchrotron, Hamburg, Germany | ||||
| Affiliation | Theory & Comp Physics / THEORY CENTER / THEORY CENTER | ||||
| Funding Source | |||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
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| Associated with an experiment | No | ||||
| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Journal Article
| Journal Name | Journal of High Energy Physics |
| Refereed | Yes |
| Volume | 1409 |
| Issue | |
| Page(s) | 99 |
Attachments/Datasets/DOI Link
| Document(s) |
amu-letter2.pdf
(STI Document)
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| DOI Link | |
| Dataset(s) | (none) |
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