ENERGY SHIFTS OBSERVED IN THE FINAL STATE N-DISTRIBUTIONS OF CHARGED
IONS INCIDENT ON ALIGNED RYDBERG TARGETS

K. Cornelius and R. E. Olson

Department of Physics,  University of Missouri-Rolla,  Rolla, MO  65401
USA

The classical trajectory Monte Carlo method has been used to calculate
the collision dynamics of electron capture collisions involving highly
charged ions incident on Rydberg hydrogen in an aligned, circular ni =
25 state. Total capture cross sections and final state n-distributions
were calculated over a large range of reduced velocities v*= vp/ve.
Plots of the final n-states or energy levels of the electron show a
departure from the predicted resonant energy peak, nf = ni(q3/4), as
well as a large broadening. In some cases, the most probable final
n-state is more than one and a half times more than the predicted value.