Electron capture in α + H2+ collisions

S.C. Cheng, B.D. Esry
(J.R. Macdonald Laboratory, Kansas State University)

We present results for the ion-molecular ion collision α + H2+. In particular, we obtain the probability for impact dissociation via electron capture at relatively low collision energies. We apply the semi-classical impact parameter approximation with fixed nuclei and solve the resulting three-dimensional time-dependent electronic Schrödinger equation with grid methods. From the calculated capture probability, we derive the angular distribution of protons for comparison with experiment.

This work was supported by the Chemical Sciences, Geosciences and Biosciences Division,
Office of Basic Energy Sciences, Office of Science, U.S. Department of Energy.

Submitted to DAMOP 2002, May 2002 in Williamsburg, VA.

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