6533b826fe1ef96bd1283f0d

RESEARCH PRODUCT

Developments in the position-space approach to the HLbL contribution to the muon $g-2$ on the lattice

Jeremy GreenAndreas NyffelerRenwick J. HudspithNils AsmussenAntoine GérardinHarvey B. MeyerEn-hung Chao

subject

Particle physicsHigh Energy Physics::LatticeHadronhep-latFOS: Physical sciencesPosition and momentum space01 natural sciencesHigh Energy Physics - Phenomenology (hep-ph)PionHigh Energy Physics - LatticeLattice (order)0103 physical sciences010306 general physicsParticle Physics - PhenomenologyPhysicsMuonMagnetic momentAnomalous magnetic dipole moment010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyHigh Energy Physics - Lattice (hep-lat)hep-phParticle Physics - LatticeLattice QCDHigh Energy Physics - PhenomenologyHigh Energy Physics::Experiment

description

The measurement of the anomalous magnetic moment of the muon and its prediction allow for a high-precision test of the Standard Model (SM). In this proceedings article we present ongoing work combining lattice QCD and continuum QED in order to determine an important SM contribution to the magnetic moment, the hadronic light-by-light contribution. We compute the quark-connected contribution in the Mainz position-space approach and investigate the long-distance part of our data using calculations of the $\pi^0$-pole and charged pion loop contributions.

10.3204/pubdb-2019-05355https://bib-pubdb1.desy.de/record/429867