Experimental determination of the rate constant for spin exchange in collisions of polarized metastable helium atoms with ground-state cesium atoms
Sergei P. Dmitriev, N. A. Dovator, Victor A. Kartoshkin
The rate constant for spin exchange in a system consisting of a metastable helium atom and an alkali-metal atom is determined. An experiment on optical orientation of atoms established that the rate constant for spin exchange in a collision of a metastable 2 3 S 1 helium atom with a cesium atom in the 6 2 S 1/2 ground state equals (2.8±0.8)×10 −9 cm 3 s −1 . The rate constant for chemoionization of cesium atoms by metastable helium atoms was determined at the same time to be (1.0±0.3)×10 9 cm 3 s −1 .
Journal of Experimental and Theoretical Physics Letters•Aug 1, 1997•0 citations