LOW ENERGY ELECTRON EMISSION IN INTERMEDIATE VELOCITY ION ATOM COLLISIONS

A. L. Landers, C. L. Cocke, M. J. Singh

Department of Physics, Kansas State University, Manhattan, Kansas 66506

Low energy continuum electrons from He produced by singly ionizing
collisions with bare projectiles
of various velocities (6 - 14 a.u.) and charge states (1 - 9) have been
measured.  Emphasis is
placed on the two-body momentum exchange between each pair of reactants.
The longitudinal momentum
exchange is restricted by small scattering angle kinematics and is well
reproduced by theory.  The
transverse momentum exchange, however, exhibits startling trends as
projectile parameters are varied.