Elementary processes with atoms and molecules in isolated and aggregated states F. Aumayr, K.H. Becker, B. Marinković, Štefan Matejčík and J. Tanis Eur. Phys. J. D, 69 7 (2015) 169 Published online: 07 July 2015 DOI: 10.1140/epjd/e2015-60301-7