Speaker
Description
The electromagnetic transition form factors (TFFs) of the light mesons provide a unique laboratory to test fundamental aspects of hadron physics. The TFF describes the coupling between the meson and photons and hence provides a probe of the intrinsic electromagnetic structure of the meson. High statistics measurements of pseudoscalar meson TFFs also play a role for the precision frontier of the Standard Model as they are needed to describe the hadronic Light-by-Light scattering contribution to the Standard Model calculation of the anomalous magnetic moment of the muon.
The TFFs depend on the momentum transfer of the two photons, $q_i^2$ ($i=1,2$), and therefore it is important to measure in both space-like ($q_i^2<0$) and time-like ($q_i^2>0$) regions. This has been achieved through a variety of measurements at meson factories and in heavy ion collisions. This presentation will review the current experimental status and summarise the available measurements of the light meson TFFs.
