Fully differential cross sections for 3.6 MeV u−1 AuZ+P+ He collisions

Recent experimental data for fully differential cross sections (FDCS) have been compared to various continuum-distorted-wave eikonal-initial-state (CDW-EIS) models without much success, despite good agreement with double-differential cross sections. We present theoretical results from a four-body problem for FDCS of 3.6 MeV/u AuZ+P + He collisions, ZP = 24, 53, with ejected electron energy of 4 eV. Theoretical results for the inclusion and omission of the internuclear potential are given. Results are an improvement on current CDWEIS calculations for these collisions, especially in the Au24+case.