Direct calculation of hadronic light-by-light scattering
- Publication type:
- Journal article
- Metadata:
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- Abstract
- We report calculations of hadronic light-by-light scattering amplitudes via lattice QCD evaluation of Euclidean four-point functions of vector currents. These initial results include only the fully quark-connected contribution. Particular attention is given to the case of forward scattering, which can be related via dispersion relations to the $\gamma^* \gamma^* \to$ hadrons cross section, and thus allows lattice data to be compared with phenomenology. We also present a strategy for computing the hadronic light-by-light contribution to the muon anomalous magnetic moment.
- Autoren
- Jeremy Green
- Nils Asmussen
- Oleksii Gryniuk
- Georg von Hippel
- Harvey B Meyer
- Andreas Nyffeler
- Vladimir Pascalutsa
- Autoren-URL
- http://arxiv.org/abs/1510.08384v1
- Schlüsselwörter
- hep-lat
- hep-lat
- hep-ph
- nucl-th
- Notes
- 7 pages, 4 figures. Talk presented at the 33rd International Symposium on Lattice Field Theory (Lattice 2015), 14-18 July 2015, Kobe International Conference Center, Kobe, Japan
- Datum der Veröffentlichung
- 2015
- Datum der Datenerfassung
- 2015
- Datum, an dem der Datensatz öffentlich gemacht wurde
- 2015
- Titel
- Direct calculation of hadronic light-by-light scattering
Files
1510.08384v1.pdf
Data source: arXiv
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