Experimental determination of the rate constant for spin exchange in collisions of polarized metastable helium atoms with ground-state cesium atoms |
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Authors: | S P Dmitriev N A Dovator V A Kartoshkin |
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Institution: | (1) A. F. Ioffe Physicotechnical Institute, Russian Academy of Sciences, 194021 St. Petersburg, Russia |
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Abstract: | 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
23
S
1 helium atom with a cesium atom in the 62
S
1/2 ground state equals (2.8±0.8)×10−9 cm3 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)×109 cm3s−1.
Pis’ma Zh. éksp. Teor. Fiz. 66, No. 3, 145–148 (10 August 1997) |
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