Frequency Shifts of the Magnetic Resonance Caused by the Spin Exchange Accompanied by Chemoionization in Collisions of Metastable Helium Atoms with Sodium Atoms in the Ground State

摘要

Results of calculations of cross sections for frequency shift in the system formed by a metastable helium atom and a sodium atom in the ground state are presented for the first time. It is shown that the cross section for frequency shift reverses sign in the temperature range from 50 to 500 K.