Dynamic correlation effects in K-shell hole production by fast protons

Abstract

There is a marked disagreement between the universal cross sections extracted from experiment by Paul (1989) for K-vacancy production produced by fast protons incident on light atoms, and theoretically calculated cross sections for the same processes. The authors address this discrepancy by examining the corrections to the theory due to the neglect of dynamic correlation. They find that these corrections are important, though they can be significantly reduced by a better choice for the single-particle potential to be used in an independent particle model. The inclusion of dynamic correlation in the theory reduces the Paul discrepancy but some disagreement still remains.