Ionization in slow collisions of Ne(2p⁵3s1.3P₁) with Ar, Kr and Xe atoms and the H₂molecule

The ionization cross sections for thermal energy collisions Ne(3s 1.3 P 1 )+X are calculated where X is an Ar, Kr or Xe atom or an H 2 molecule. The results are compared with experimental data. A theoretical analysis of the Ne(3s) rare gas term structure and autoionization width is performed. The interaction potentials of the Ne(3s)+H 2 system are calculated using the pseudopotential method.