DYNAMIC CORRELATION-EFFECTS IN K-SHELL HOLE PRODUCTION BY FAST PROTONS

There is a marked disagreement between the universal cross sections ex tracted from experiment by Paul for K-vacancy production produced by f ast protons incident on light atoms, and theoretically calculated cros s sections for the same processes. In this paper we address this discr epancy by examining the corrections to the theory due to the neglect o f dynamic correlation. We find that these corrections are important, t hough they can be significantly reduced by a better choice for the sin gle-particle potential to be used in an independent particle model. Th e inclusion of dynamic correlation in the theory reduces the Paul disc repancy but some disagreement still remains.