Hadronic light-by-light scattering contribution to the muon g – 2 on the lattice
- Publikationstyp:
- Konferenzbeitrag
- Metadaten:
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- Abstract
- Abstract: (EDP Sciences) We briefly review several activities at Mainz related to hadronic light-by-light scattering (HLbL) using lattice QCD. First we present a position-space approach to the HLbL contribution in the muon g̅2, where we focus on exploratory studies of the pion-pole contribution in a simple model and the lepton loop in QED in the continuum and in infinite volume. The second part describes a lattice calculation of the double-virtual pion transition form factor Fπ0γ*γ* (q21; q21) in the spacelike region with photon virtualities up to 1.5 GeV2 which paves the way for a lattice calculation of the pion-pole contribution to HLbL. The third topic involves HLbL forward scattering amplitudes calculated in lattice QCD which can be described, using dispersion relations (HLbL sum rules), by γ*γ* → hadrons fusion cross sections and then compared with phenomenological models. Note: 8 pages, 19 figures, contribution to the proceedings of FCCP2017 - Workshop on "Flavour changing and conserving processes", 7-9 September 2017, Anacapri, Capri Island, Italy
- Autoren
- Harvey Meyer
- Nils Asmussen
- Antoine Gerardin
- Oleksii Gryniuk
- Georg von Hippel
- Autoren-URL
- https://researchelements.uni-mainz.de/userprofile.html?uid=173
- DOI
- 10.1051/epjconf/201817901017
- Conference finish date
- 2017
- Conference place
- Capri
- Name of conference
- FCCP2017
- Datum der Veröffentlichung
- 2018
- Status
- Published
- Herausgeber
- Arxiv
- Herausgeber URL
- https://arxiv.org/abs/1812.03553
- Datum der Datenerfassung
- 2023
- Conference start date
- 2017
- Titel
- Hadronic light-by-light scattering contribution to the muon g – 2 on the lattice
- Ausgabe der Zeitschrift
- PoS LATTICE2018 (2018) 139
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