Single electron ionization of NH$_{3}$ and CH$_{4}$ by swift proton impact

C. A. TACHINO; J. M. MONTI; O. A. FOJÓN; C. CHAMPION; R. D. RIVAROLA

Bariloche

Conferencia; XVII International Conference on the Physics of Highly Charged Ions; 2014

Single ionization from ammonia and methane molecules by impact of protons is analysed. Double differential cross sections are calculated, within the post- and prior-versions of the continuum distorted wave-eikonal initial state (CDW-EIS) model, considering two different representations of the initial bound state of the active electron. A comparison between both set of results shows a very little sensitivity of the double differential cross sections to the initial state representation in the case of ammonia molecules. On the other hand, discrepancies are found when CH$_{4}$ molecular target is considered, showing that in this case the description of the corresponding molecular orbitals influences the cross section calculations.