Relativistic R matrix with pseudostates calculations for electron scattering from cesium atoms -: art. no. 052719

The R matrix with pseudostates (RMPS) method was used with inclusion of relativistic effects to calculate differential cross sections and several spin asymmetries for elastic electron scattering from Cs atoms in the theoretically most difficult "intermediate energy regime" between one and five times the ionization threshold. Comparison of the RMPS predictions with experimental benchmark data for 7, 13, and 20 eV is satisfactory, thereby indicating the applicability of the method to collision systems involving heavy targets. Furthermore, justification for the apparent success of nonrelativistic calculations for the differential cross sections and the exchange asymmetry is given.