Ion pair formation in H, D+Ar, Kr, Xe collisions from threshold to 100 eV

Abstract
Integral cross sections are reported for ion pair formation in collisions between hydrogen (H,D) and noble-gas (Ar,Kr,Xe) atoms from threshold to 100 eV. The energy dependence of the cross sections is strongly oscillatory. A curve crossing model provides a good semi-quantitative explanation of the results.