Vibrationndash;rotation relaxation in bimolecular collisions with application to parahyphen;hydrogen

摘要

Threehyphen;dimensional quantum mechanical calculations in the effective potential approximation have been made on the parahyphen;hydrogen system. At low temperatures, vibndash;rotationally inelastic collisions were examined while breathing sphere calculations were used to probe the highhyphen;temperature regime. It was found that simultaneous vibrational and rotational processes contribute to the overall mechanism of vibrational relaxation. Collisionally induced intrahyphen; and intermolecular energy transfer is possible in the present calculation, and the corresponding cross sections are examined in detail. Rates are calculated from the cross sections and compared with experiment.