Lattice Determination of the Anomalous Magnetic Moment of the Muon

Michele Della Morte; Benjamin Jäger; Andreas Jüttner; Hartmut Wittig

doi:10.22323/1.139.0161

Lattice Determination of the Anomalous Magnetic Moment of the Muon

Michele Della Morte, Benjamin Jäger, Andreas Jüttner, Hartmut Wittig

Johannes Gutenberg University

Research output: Contribution to journal › Conference article › Research › peer-review

Abstract

We compute the leading hadronic contribution to the anomalous magnetic moment of the muon a_mu^HLO using two dynamical flavours of non-perturbatively O(a) improved Wilson fermions. By applying partially twisted boundary conditions we are able to improve the momentum resolution of the vacuum polarisation, an important ingredient for the determination of the leading hadronic contribution. We check systematic uncertainties by studying several ensembles, which allows us to discuss finite size effects and lattice artefacts. The chiral behavior of a_mu^HLO turns out to be non-trivial, especially for small pion masses.

Original language	English
Journal	P o S - Proceedings of Science
Volume	161
ISSN	1824-8039
DOIs	https://doi.org/10.22323/1.139.0161
Publication status	Published - 9. Nov 2011
Externally published	Yes
Event	29th International Symposium on Lattice Field Theory, Lattice 2011 - Squaw Valley, Lake Tahoe, United States Duration: 10. Jul 2011 → 16. Jul 2011

Conference

Conference	29th International Symposium on Lattice Field Theory, Lattice 2011
Country/Territory	United States
City	Squaw Valley, Lake Tahoe
Period	10/07/2011 → 16/07/2011

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10.22323/1.139.0161Licence: CC BY-NC-SA

Cite this

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title = "Lattice Determination of the Anomalous Magnetic Moment of the Muon",

abstract = " We compute the leading hadronic contribution to the anomalous magnetic moment of the muon a_mu^HLO using two dynamical flavours of non-perturbatively O(a) improved Wilson fermions. By applying partially twisted boundary conditions we are able to improve the momentum resolution of the vacuum polarisation, an important ingredient for the determination of the leading hadronic contribution. We check systematic uncertainties by studying several ensembles, which allows us to discuss finite size effects and lattice artefacts. The chiral behavior of a_mu^HLO turns out to be non-trivial, especially for small pion masses. ",

keywords = "hep-lat",

author = "Morte, {Michele Della} and Benjamin J{\"a}ger and Andreas J{\"u}ttner and Hartmut Wittig",

year = "2011",

month = nov,

day = "9",

doi = "10.22323/1.139.0161",

language = "English",

volume = "161",

journal = "P o S - Proceedings of Science",

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note = "29th International Symposium on Lattice Field Theory, Lattice 2011 ; Conference date: 10-07-2011 Through 16-07-2011",

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T1 - Lattice Determination of the Anomalous Magnetic Moment of the Muon

AU - Morte, Michele Della

AU - Jäger, Benjamin

AU - Jüttner, Andreas

AU - Wittig, Hartmut

PY - 2011/11/9

Y1 - 2011/11/9

N2 - We compute the leading hadronic contribution to the anomalous magnetic moment of the muon a_mu^HLO using two dynamical flavours of non-perturbatively O(a) improved Wilson fermions. By applying partially twisted boundary conditions we are able to improve the momentum resolution of the vacuum polarisation, an important ingredient for the determination of the leading hadronic contribution. We check systematic uncertainties by studying several ensembles, which allows us to discuss finite size effects and lattice artefacts. The chiral behavior of a_mu^HLO turns out to be non-trivial, especially for small pion masses.

AB - We compute the leading hadronic contribution to the anomalous magnetic moment of the muon a_mu^HLO using two dynamical flavours of non-perturbatively O(a) improved Wilson fermions. By applying partially twisted boundary conditions we are able to improve the momentum resolution of the vacuum polarisation, an important ingredient for the determination of the leading hadronic contribution. We check systematic uncertainties by studying several ensembles, which allows us to discuss finite size effects and lattice artefacts. The chiral behavior of a_mu^HLO turns out to be non-trivial, especially for small pion masses.

KW - hep-lat

U2 - 10.22323/1.139.0161

DO - 10.22323/1.139.0161

M3 - Conference article

SN - 1824-8039

VL - 161

JO - P o S - Proceedings of Science

JF - P o S - Proceedings of Science

T2 - 29th International Symposium on Lattice Field Theory, Lattice 2011

Y2 - 10 July 2011 through 16 July 2011

ER -

Lattice Determination of the Anomalous Magnetic Moment of the Muon

Abstract

Conference

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