Ionization scaling law for ions colliding with elliptical Rydberg hydrogen targets

Abstract

The classical trajectory Monte Carlo (CTMC) method has been used to model fully stripped ions of He, C, Ar, and Kr colliding with aligned elliptic Rydberg hydrogen in various excited initial n states. CTMC cross sections from target eccentricities of − 0.99 to 0.99 and reduced ion velocities ranging from 5 to 40 were used to develop an ionization scaling law as a function of reduced velocity v * , initial n state, projectile charge q, and initial electron eccentricity ε. The nonelliptic part of our scaling law has been compared to other existing ionization models and found to be in very good agreement.