Angular differential cross sections and mean energy gain for single- and multiple-electron capture in slow Ar8+-C-60 collisions

We present experimental results for angular differential cross sections, d sigma/d theta, and mean translational energy gain, Delta E-mean, as functio ns of the number of electrons, s, stabilized on the projectile in 26.4 keV Ar8++C-60 --> Ar(8-s)++C-60(r+)(r-s)e(-) collisions. The most probable scat tering angle increases linearly with s for s=1-7, while processes leading t o neutralization (s=8) scatter more strongly than expected from this trend. The Delta E-mean-values are positive and increase with s between s=1 and s =2, are virtually constant up to s=6, and finally decrease to negative valu es (energy loss) for s=7. The experimental results are compared with Monte Carlo trajectory simulations for impact parameters ranging from small to la rge values.