A NEW THEORETICAL METHOD FOR COLLISIONS WITH CORRELATED ATOMS Academic Article uri icon

abstract

  • In the past decade we have developed new numerical methods for describing ion-atom collisions. We have previously limited ourselves to those systems where it is accurate to treat the projectile-target trajectory classically and the motion of the electrons in the static independent particle model. We have shown that this reduces to solving the time dependent perturbation of a single-electron atom, with of course the proviso that one must calculate all the relevant single-particle amplitudes that describe the states of interest. We have now developed an efficient new method for including electron-electron correlations exactly. This method and its application to two-electron collision systems will be described in detail. We discuss preliminary results for p + He collisions, where experiments show an intriguing difference between the proton and equal velocity electron double ionization cross sections. 1985.

published proceedings

  • NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

author list (cited authors)

  • FORD, A. L., & READING, J. F.

citation count

  • 17

complete list of authors

  • FORD, AL||READING, JF

publication date

  • May 1985