Theoretical Analysis On Fully Differential Cross Sections For C⁶⁺ Impact Ionization Of Helium

The modified coulomb born (MCB) model is applied to study the singleionization of helium by2MeV/amu C6+ion. The fully differential crosssections are presented for a variety of momentum transfers andejected-electron energies in the scattering plane. The MCB resultsare compared with the experiential data and other theoreticalpredictions. In smaller ionization electron energy and greatermomentum transfer，the MCB theory is in good agreement with theexperimental results. In small momentum transfer the position of thebinary peak move right. We find that the MCB results are similar to the3C (three-body coulomb wave) results and they are superior to the3DW-EIS (three-body distorted wave-eikonal initial state) results. Itturns out that the treatment of the passive electron is very importantfor the results and distorting effects are not obvious. At the same timethe difference between the result of theory and the result ofexperiment is very big. It is probably because incomplete coherent ofincident particles. At the same time, we analyze perturbationpotential and distorting potential separately. We found that theimpact of distorting potential is small.