Leading hadronic contribution to (g-2)μ from lattice QCD with Nf=2+1 flavors of O(a) improved Wilson quarks

Publication type:
Journal article
Metadata:
Autoren
  • Antoine Gerardin
  • Marco Ce
  • Georg von Hippel
  • Ben Horz
  • Harvey B Meyer
  • Daniel Mohler
  • Konstantin Ottnad
  • Jonas Wilhelm
  • Hartmut Wittig
Autoren-URL
https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:000477897100006&DestLinkType=FullRecord&DestApp=WOS_CPL
DOI
10.1103/PhysRevD.100.014510
eISSN
2470-0029
Externe Identifier
  • Clarivate Analytics Document Solution ID: IM3MK
ISSN
2470-0010
Ausgabe der Veröffentlichung
1
Zeitschrift
PHYSICAL REVIEW D
Artikelnummer
ARTN 014510
Datum der Veröffentlichung
2019
Status
Published
Titel
Leading hadronic contribution to (<i>g</i>-2)<sub>μ</sub> from lattice QCD with <i>N</i><sub>f</sub>=2+1 flavors of O(<i>a</i>) improved Wilson quarks
Sub types
  • Article
Ausgabe der Zeitschrift
100

Data source: Web of Science (Lite)

Other metadata sources:
Autoren
  • Antoine Gérardin
  • Marco Cè
  • Georg von Hippel
  • Ben Hörz
  • Harvey B Meyer
  • Daniel Mohler
  • Konstantin Ottnad
  • Jonas Wilhelm
  • Hartmut Wittig
DOI
10.1103/physrevd.100.014510
eISSN
2470-0029
ISSN
2470-0010
Ausgabe der Veröffentlichung
1
Zeitschrift
Physical Review D
Sprache
en
Artikelnummer
014510
Online publication date
2019
Status
Published online
Herausgeber
American Physical Society (APS)
Herausgeber URL
http://dx.doi.org/10.1103/physrevd.100.014510
Datum der Datenerfassung
2019
Titel
Leading hadronic contribution to <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mo stretchy="false">(</mml:mo><mml:mi>g</mml:mi><mml:mo>−</mml:mo><mml:mn>2</mml:mn><mml:msub><mml:mrow><mml:mo stretchy="false">)</mml:mo></mml:mrow><mml:mrow><mml:mi>μ</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math> from lattice QCD with <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>N</mml:mi><mml:mi mathvariant="normal">f</mml:mi></mml:msub><mml:mo>=</mml:mo><mml:mn>2</mml:mn><mml:mo>+</mml:mo><mml:mn>1</mml:mn></mml:math> flavors of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi mathvariant="normal">O</mml:mi><mml:mo stretchy="false">(</mml:mo><mml:mi>a</mml:mi><mml:mo stretchy="false">)</mml:mo></mml:mrow></mml:math> improved Wilson quarks
Ausgabe der Zeitschrift
100

Data source: Crossref

Abstract
The comparison of the theoretical and experimental determinations of the anomalous magnetic moment of the muon $(g-2)_\mu$ constitutes one of the strongest tests of the Standard Model at low energies. In this article, we compute the leading hadronic contribution to $(g-2)_\mu$ using lattice QCD simulations employing Wilson quarks. Gauge field ensembles at four different lattice spacings and several values of the pion mass down to its physical value are used. We apply the O($a$) improvement programme with two discretizations of the vector current to better constrain the approach to the continuum limit. The electromagnetic current correlators are computed in the time-momentum representation. In addition, we perform auxiliary calculations of the pion form factor at timelike momenta in order to better constrain the tail of the isovector correlator and to correct its dominant finite-size effect. For the numerically dominant light-quark contribution, we have rescaled the lepton mass by the pion decay constant computed on each lattice ensemble. We perform a combined chiral and continuum extrapolation to the physical point, and our final result is $ a_\mu^{\rm hvp}=(720.0\pm12.4_{\rm stat}\,\pm9.9_{\rm syst})\cdot10^{-10}$. It contains the contributions of quark-disconnected diagrams, and the systematic error has been enlarged to account for the missing isospin-breaking effects.
Autoren
  • Antoine Gérardin
  • Marco Cè
  • Georg von Hippel
  • Ben Hörz
  • Harvey B Meyer
  • Daniel Mohler
  • Konstantin Ottnad
  • Jonas Wilhelm
  • Hartmut Wittig
Autoren-URL
http://arxiv.org/abs/1904.03120v1
Zeitschrift
Phys. Rev. D
Schlüsselwörter
  • hep-lat
  • hep-lat
  • hep-ph
Notes
30 pages, 10 figures
Paginierung
014510
Datum der Veröffentlichung
2019
Herausgeber URL
http://dx.doi.org/10.1103/PhysRevD.100.014510
Datum der Datenerfassung
2019
Datum, an dem der Datensatz öffentlich gemacht wurde
2019
Titel
The leading hadronic contribution to $(g-2)_μ$ from lattice QCD with $N_{\rm f}=2+1$ flavours of O($a$) improved Wilson quarks
Ausgabe der Zeitschrift
100

Files

1904.03120v1.pdf

Data source: arXiv

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