Spin polarization transfer in ground and metastable helium atom collisions
D. Vrinceanu, H. R. Sadeghpour
Cross sections and rate constants for total elastic, diffusion and transfer of metastability for collisions between He(11S)–He(23S) and He(11S)–He(23P) atoms over a wide range of energies and temperatures are presented. The rate constant for spin metastability excitation in He(11S)–He(23P) collision is several orders of magnitude larger than that for He(11S)–He(23S) collision at cold temperatures, due to attractive 3Πg potential interaction.
New Journal of Physics•Jun 28, 2010•7 citations