Published 2020 | Version v1
Journal article Metadata-only

Lattice calculation of the hadronic leading order contribution to the muon g − 2

Creators

  • 1. Helmholtz Institute Mainz, D-55099 Mainz (Germany)
  • 2. PRISMA+ Cluster of Excellence and Institute for Nuclear Physics, University of Mainz, D-55099 Mainz (Germany)
  • 3. John von Neumann Institute for Computing, DESY, Platanenallee 6, D-15738 Zeuthen (Germany)
  • 4. Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States)

Description

The persistent discrepancy of about 3.5 standard deviations between the experimental measurement and the Standard Model prediction for the muon anomalous magnetic moment, aµ, is one of the most promising hints for the possible existence of new physics. Here we report on our lattice QCD calculation of the hadronic vacuum polarisation contribution , based on gauge ensembles with Nf = 2 + 1 flavours of O(a) improved Wilson quarks. We address the conceptual and numerical challenges that one encounters along the way to a sub-percent determination of the hadronic vacuum polarisation contribution. The current status of lattice calculations of is presented by performing a detailed comparison with the results from other groups.

Availability note (English)

Available from https://www.epj-conferences.org/articles/epjconf/pdf/2020/10/epjconf_fccp2019_01016.pdf; https://doaj.org/article/913085a19d0f49a19428421bf7ed6552

Additional details

Identifiers

URL
https://www.epj-conferences.org/articles/epjconf/pdf/2020/10/epjconf_fccp2019_01016.pdf; https://doaj.org/article/913085a19d0f49a19428421bf7ed6552;
DOI
10.1051/epjconf/202023401016;

Publishing Information

Journal Title
EPJ. Web of Conferences
Journal Volume
234
Journal Page Range
vp.
ISSN
2100-014X

Conference

Title
International Workshop on Flavour Changing and Conserving Processes
Acronym
FCCP2019
Dates
29-31 Aug 2019
Place
Anacapri, Capri Island (Italy)

INIS

Country of Publication
France
Country of Input or Organization
France
INIS RN
53093015
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference
Descriptors DEI
FLAVOR MODEL; HADRONS; MAGNETIC MOMENTS; MUONS; QUANTUM CHROMODYNAMICS; QUARKS; STANDARD MODEL; VACUUM POLARIZATION
Descriptors DEC
COMPOSITE MODELS; ELEMENTARY PARTICLES; FERMIONS; FIELD THEORIES; GRAND UNIFIED THEORY; LEPTONS; MATHEMATICAL MODELS; PARTICLE MODELS; QUANTUM FIELD THEORY; QUARK MODEL; UNIFIED GAUGE MODELS