Hadronic contributions to the anomalous magnetic moment of the muon from Lattice QCD

M. Cè, E.-H. Chao, A. Gérardin, J. R. Green, G. von Hippel, B. Hörz, R. J. Hudspith, H. B. Meyer, K. Miura, D. Mohler, K. Ottnad, S. Paul, A. Risch, T. San José and H. Wittig
Additional contact information
M. Cè: CERN, Theoretical Physics Department
E.-H. Chao: Universität Mainz, Institut für Kernphysik and PRISMA+ Cluster of Excellence
A. Gérardin: Aix Marseille Univ, Université de Toulon, CNRS, CPT
J. R. Green: CERN, Theoretical Physics Department
G. von Hippel: Universität Mainz, Institut für Kernphysik and PRISMA+ Cluster of Excellence
B. Hörz: Lawrence Berkeley National Laboratory, Nuclear Science Division
R. J. Hudspith: Universität Mainz, Institut für Kernphysik and PRISMA+ Cluster of Excellence
H. B. Meyer: Johannes Gutenberg Universität, Helmholtz Institut Mainz
K. Miura: Johannes Gutenberg Universität, Helmholtz Institut Mainz
D. Mohler: GSI Helmholtzzentrum für Schwerionenforschung
K. Ottnad: Universität Mainz, Institut für Kernphysik and PRISMA+ Cluster of Excellence
S. Paul: Universität Mainz, Institut für Kernphysik and PRISMA+ Cluster of Excellence
A. Risch: Deutsches Elektronen-Synchrotron DESY, John von Neumann Institute for Computing NIC
T. San José: Johannes Gutenberg Universität, Helmholtz Institut Mainz
H. Wittig: Johannes Gutenberg Universität, Helmholtz Institut Mainz

A chapter in High Performance Computing in Science and Engineering '21, 2023, pp 19-33 from Springer

Abstract: Abstract The recently reported new measurement of the anomalous magnetic moment of the muon, 𝑎𝜇, by the E989 collaboration at Fermilab has increased the tension with the Standard Model (SM) prediction to 4.2 standard deviations. In order to increase the sensitivity of SM tests, the precision of the theoretical prediction, which is limited by the strong interaction, must be further improved. In our project we employ lattice QCD to compute the leading hadronic contributions to 𝑎𝜇 and various other precision observables, such as the energy dependence (“running”) of the electromagnetic coupling, 𝛼, and the electroweak mixing angle, sin2 𝜃W. Here we report on the performance of our simulation codes used for the generation of gauge ensembles at (near-)physical pion masses and fine lattice spacings. Furthermore, we present results for the hadronic running of 𝛼, the electroweak mixing angle, as well as the hadronic vacuum polarisation and light-by-light scattering contributions to 𝑎𝜇. Results from an ancillary calculation of the spectrum in the isovector channel are crucial in order to further increase the precision of our determination of the hadronic vacuum polarisation contribution.

Date: 2023
References: Add references at CitEc
Citations:

There are no downloads for this item, see the EconPapers FAQ for hints about obtaining it.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:spr:sprchp:978-3-031-17937-2_2

Ordering information: This item can be ordered from
http://www.springer.com/9783031179372

DOI: 10.1007/978-3-031-17937-2_2

Access Statistics for this chapter

More chapters in Springer Books from Springer
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().