Speaker
Dr
Jeremy Green
(Institut für Kernphysik, Johannes Gutenberg-Universität Mainz)
Description
Calculations of hadronic light-by-light scattering amplitudes via lattice QCD evaluation of Euclidean four-point functions of vector currents will be reported. These initial results include only the fully quark-connected contribution. Particular attention will be given to the case of forward scattering, which can be related via dispersion relations to the gamma* gamma* -> hadrons cross section, and thus allows lattice data to be compared with phenomenology. A strategy for computing the hadronic light-by-light contribution to the muon anomalous magnetic moment will also be briefly outlined.
Primary author
Dr
Jeremy Green
(Institut für Kernphysik, Johannes Gutenberg-Universität Mainz)
Co-authors
Dr
Andreas Nyffeler
(Institut für Kernphysik, Johannes Gutenberg-Universität Mainz)
Prof.
Harvey Meyer
(Institut für Kernphysik, Johannes Gutenberg-Universität Mainz)
Mr
Nils Asmussen
(Institut für Kernphysik, Johannes Gutenberg-Universität Mainz)
Mr
Oleksii Gryniuk
(Institut für Kernphysik, Johannes Gutenberg-Universität Mainz)
Dr
Vladimir Pascalutsa
(Institut für Kernphysik, Johannes Gutenberg-Universität Mainz)
