Theoretical description of the anomalous qdependence of the zero degree binary peak in F ^{q+ } + H _{2} collisions
Abstract
The anomalous qdependence of the zero degree binary peak recently observed by Richard et al. [J. Phys. B23 (1990) L213] is explained in terms of the differences between the scattering of target electrons by either a bare or a clothed projectile. Calculations have been performed using the impulse or binary encounter approximation. That is, the convolution of the quantum mechanical elastic cross section and the target momentum distribution is calculated. The nonCoulomb phaseshifts due to the screened projectileelectron interaction were obtained by direct integration of the radial Schrödinger equation using HartreeFock model potentials. Very good agreement is obtained between theory and experiment and, furthermore, this model is used to illuminate the underlying dynamics which leads to the anomalous behavior.
 Publication:

Nuclear Instruments and Methods in Physics Research B
 Pub Date:
 May 1991
 DOI:
 10.1016/0168583X(91)96023E
 Bibcode:
 1991NIMPB..56..271R