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>Inelastic collisions of OH (2Pgr;) with H2: Comparison between theory and experiment including rotational, fine structure, and Lgr;hyphen;doublet transitions
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Inelastic collisions of OH (2Pgr;) with H2: Comparison between theory and experiment including rotational, fine structure, and Lgr;hyphen;doublet transitions
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机译：Inelastic collisions of OH (2Pgr;) with H2: Comparison between theory and experiment including rotational, fine structure, and Lgr;hyphen;doublet transitions
Detailed cross section calculations for inelastic collisions of OH (2Pgr;) in the ground statej=3/2, OHgr;macr;=3/2 with H2are presented using anabinitiopotential energy surface without adjustable parameters. The OH molecular wave function is described within the intermediate coupling case. The results are compared with recent experiments. The agreement is satisfactory for the final rotational state distributions within both the OHgr;macr;=3/2 and the OHgr;macr;=1/2 ladder. Also the relative magnitude of OHgr;macr;=1/2 and 3/2 cross sections is in good accord with experiment and thus indicates that the difference potentialVAprime;hyphen;VAPrime;is realistically described by theabinitiocalculation. The dynamical calculations yield prefential excitation of one Lgr;hyphen;doublet state. The extent of this preference increases withjand is larger for OHgr;macr;=3/2 in qualitative but not quantitative agreement with experiment. Possible interpretations in terms of the potential energy surfaces are briefly discussed.
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