Theory of the relaxation matrix and its relation to microwave transient phenomena. II. Semiclassical calculations for systems of OCS and nonpolar collision partners

Abstract

Cross sections corresponding to relaxation times T1 and T2 measured in microwave transient experiments are calculated for systems of OCS and nonpolar collision partners, employing the recently developed semiclassical theory of molecular collisions. Cases in the presence and absence of static Stark field are described. The over-all agreement with existing experimental results is encouraging. Similarities and differences between T1/T2 values in microwave transient experiments and in molecular beam maser experiments are discussed, together with a role of semiclassical collisional selection rules.

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