Angular correlation parameters for 1s-2p excitation of hydrogen calculated in the distorted-wave approximation

Abstract
An uncoupled distorted-wave formalism is presented. Source parameters necessary for obtaining the coincidence rate of Ly- alpha photons and scattered electrons for electron excitation of the 2p state of hydrogen at 54, 100, and 200 eV are calculated in this formalism. These results are compared with source parameters obtained in other theoretical models.