Two-photon physics at future electron-positron colliders

I. R. Boyko, V. V. Bytev, A. S. Zhemchugov

Published 2021-10-04, updated 2022-10-28Version 2

Two photon collisions offer a variety of physics studies that can be performed at the future electron-positron colliders. Using the planned CEPC parameters as a benchmark we consider several topics to be studied in the two-photon collisions. With the full integrated luminosity the Higgs boson photoproduction can be reliably observed. A large statistics of various quarkonium states can be collected. The LEP results on the photon structure function and the tau lepton anomalous magnetic moment can be improved by 1-2 orders of magnitude.