Gamma-gamma physics and meson transition form factors
Department of Physics and Astronomy, Uppsala University, Box 516, SE-75120 Uppsala, Sweden
2 National Centre for Nuclear Research, Pasteura 7, 02-093 Warsaw, Poland
a e-mail: Andrzej.Kupsc@physics.uu.se
Published online: 27 April 2020
I summarize recent experimental results for two photon production of mesons. These processes include the neutral pion, η and η′ transition form factors and two photon production of pseudoscalar meson pairs. In addition I discuss the related hadronic and radiative processes. All these processes are attracting attention of experiment and theory due their relevance for the hadronic light-by-light contribution to the muon anomalous magnetic moment.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.