AN ASYMPTOTIC THEORY OF REACTION CROSS-SECTIONS FOR ION-ATOM COLLISIONS - SHORT-RANGE FORCES uri icon

abstract

  • We investigate an analytical method for calculating a second Bom correction for direct reaction cross sections produced by asymptotically fast screened projectiles. We provide a topical proof of the response theorem which leads to a simple formula in terms of an on-shel) two-body (-matrix element at an energy determined by a vector form factor. The theory has the advantage that it provides an error estimate. A practical application of the method is presented for the ls-2s excitation of a hydrogen-like atom. The cross sections are compared to those obtained from an expansion in a finite Hilbert basis set. © 1993 IOP Publishing Ltd.

published proceedings

  • JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS

author list (cited authors)

  • HALL, K. A., READING, J. F., & FORD, A. L.

citation count

  • 7

complete list of authors

  • HALL, KA||READING, JF||FORD, AL

publication date

  • June 1993