EPJ Web Conf.
Volume 234, 2020International Workshop on “Flavour Changing and Conserving Processes” (FCCP2019)
|Number of page(s)||6|
|Published online||27 April 2020|
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
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