Angular differential cross sections for slow highly
charged ions colliding with C60 clusters
L. Hägg, A. Bárány, H. Cederquist
Stockholm University, Sweden
U. Thumm
Kansas State University
Abstract
We present theoretical absolute angular differential cross
sections
d
/d
for collisions between 3.3q keV Arq+
(q=8,16) ions and C60.
Using a classical overbarrier simulation [1] the deflection function
is calculated for large impact parameters [2]. The contribution from small
impact parameters is neglected. To compare with experimental
data [3] the theoretical cross section values are convoluted with a
Gaussian using a width corresponding to
that of the primary beam. The theoretical and experimental absolute
d/d
for one-electron capture agree very well for small angles.
[1] U. Thumm, J. Phys. B 27 (1994) 3515;
Phys. Rev. A 55 (1997) 479.
[2] B. Walch et al., Phys. Rev. A 58 (1998) 1261;
L. Hägg et al., to appear in Physica Scripta.
[3] H. Cederquist et al., to be published.
Supported by the Division of Chemical Sciences, Basic
Energy Sciences, Office of Energy Research, U.S. DOE.
Submitted to the APS Centennial Meeting/DAMOP, Atlanta, GA in March 1999
