Quantum and classical path calculations of the total cross section for He + ( 2S) + Ne (2p 6, 1S) → He + ( 2S) + Ne (2p 53s 1P) with collision energy from 20 to 70.9 eV

Abstract

In this paper we have calculated total quantum cross sections as a function of collision energy with the range of 20 to 70.9 eV and have compared these results with those obtained by using the Classical Path approximation and the Landau-Zener method applied to the He +Ne system. We obtain a very satisfactory agreement between quantum and classical path total cross sections and we have also found oscillations for the transition probabilities with collision energy close to the threshold which were not found in a previous work.