Quantal close-coupling studies of excited alkali-metal-rare-gas collisions. II. Na+He

For pt.I see ibid., vol.7, p.1543 (1974). Quantal close-coupling calculations of Na(32Pjmj)-He(1S) collisions are presented. The Baylis (1969) and a combined Baylis-Krauss et al. (1971) potentials are investigated in the temperature range 400K-4500K. The cross sections for population transfer, multipole relaxation and coherence transfer appropriate to gas-phase experiments, and the population transfer cross sections for beam experiments, are opacity analysed and the opacity functions are studied as a function of l. The ranges of l contributing to depolarization and inelastic processes overlap and cross sections are of similar magnitude. Rotation of the internuclear axis is the main transition mechanism and the cross sections can be characterized by the three Grawert parameters.