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Single and double ionization of helium: the axial symmetry
Ist Teil von
Journal of physics. B, Atomic, molecular, and optical physics, 2008-01, Vol.41 (2), p.025202-025202 (9)
Ort / Verlag
Bristol: IOP Publishing
Erscheinungsjahr
2008
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
Transition amplitudes and probabilities are the basic quantities of numerous theoretical approaches for the interpretation of collisional processes. These quantities are often evaluated from the transition matrix via Fourier transformation. However, a modification of the axial symmetry of the collision has sometimes been introduced to simplify the calculation. The present study shows that such a simplification is in general not justified and a source of highly unrealistic results. This is demonstrated in studies of single and double ionization of helium by ion impact.