Molecular collisions, photoionization and dynamics: honouring Professor Vincent McKoy M. H. F. Bettega, S. J. Buckman, M. Khakoo, P. Limão-Vieira and M. T. do N. Varella Eur. Phys. J. D, 76 4 (2022) 65 Published online: 07 April 2022 DOI: 10.1140/epjd/s10053-022-00391-w