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ABSTRACT

Davis and Green 1983

Davis, S.L., and S. Green, 1983: M dependence in the analysis of NH3He microwave double resonance experiments. J. Chem. Phys., 78, 2170-2174, doi:10.1063/1.445080.

New close-coupled calculations of laboratory-frame, m-dependent cross sections for rotational excitation in NH3-He collisions are used to examine the validity of using degeneracy averaged values in the analysis of four-level double resonance experiments. It is found that the proper use of m-dependent cross sections and absorption probabilities produces only minor changes in the calculated ΔI/I and does not, therefore, resolve the discrepancies between theoretical and experimental values that were noted in previous studies.

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