Ionization induced by protons on isolated molecules of adenine: Theory, modelling and experiment

C. CHAMPION; M. E. GALASSI; P. F. WECK; C. ABDALLAH; Z. FRANCIS; M. A. QUINTO; O. FOJON; R. D. RIVAROLA; J. HANSSEN; Y. IRIKI; A. ITOH

Journal of Physics: Conference Series

The Institute of Physics

Lugar: Bristol; Año: 2014 p. 120381 - 129389

1742-6596

We here report a comparison between semi-empirical and theoretical predictions in terms of differential and total cross sections for proton-induced ionization of isolated adenine molecules. Whereas the first ones are provided by existing analytical models, the second ones are based on two quantum-mechanical models recently developed within the 1st Born and the continuum distorted wave approximation, respectively. Besides, a large set of experimental data is also reported for comparisons. In all kinematical conditions here investigated, we have observed a very good agreement between theory and experiment whereas strong discrepancieswere reported with the semi-empirical models in particular when doubly-differential cross sections are analysed.