Light-by-light forward scattering amplitudes in Lattice QCD
- Publikationstyp:
- Konferenzbeitrag
- Metadaten:
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- Abstract
- Abstract: (EDP Sciences) We present our preliminary results on the calculation of hadronic light-by-light forward scattering amplitudes using vector four-point correlation functions computed on the lattice. Using a dispersive approach, forward scattering amplitudes can be described by γ*γ* → hadrons fusion cross sections and then compared with phenomenology. We show that only a few states are needed to reproduce our data. In particular, the sum rules considered in this study imply relations between meson–γγ couplings and provide valuable information about individual form factors which are often used to estimate the meson-pole contributions to the hadronic light-by-light contribution to the (g – 2) of the muon. Note:Proceedings of the 35th International Symposium on Lattice Field Theory (Lattice 2017), Granada, Spain. 8 pages, 15 figures
- Autoren
- Harvey Meyer
- Antoine Gerardin
- Jeremy Green
- Oleksii Gryniuk
- Georg von Hippel
- Autoren-URL
- https://researchelements.uni-mainz.de/userprofile.html?uid=173
- DOI
- 10.1051/epjconf/201817506030
- Conference finish date
- 2017
- Zeitschrift
- Proceedings, 35th International Symposium on Lattice Field Theory (Lattice 2017) : Granada, Spain, June 18-24, 2017
- Conference place
- Granada Spain
- Name of conference
- Lattice 2017
- Herausgeber
- EPJ Web Conf. 175 (2018) 06030
- Herausgeber URL
- https://www.epj-conferences.org/articles/epjconf/abs/2018/10/epjconf_lattice2018_06030/epjconf_lattice2018_06030.html
- Datum der Datenerfassung
- 2023
- Conference start date
- 2017
- Titel
- Light-by-light forward scattering amplitudes in Lattice QCD
- Ausgabe der Zeitschrift
- 175
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