Energy Exchange between H D (B1 Σu +, υ′, J′ ) and Ground State H2 and D2 by Interaction of Electronic Transition Dipole Moments

Abstract

Steady state fluorescence experiments with mixtures of HD and H₂ or D₂ have given effective cross sections for energy exchange processes in collisions of electronically excited HD and ground state H₂ and D₂ molecules in well defined quantum states. The experimental results are compared with first order calculations using the Sharma-Brau theory of energy transfer due to the interaction of transition dipole moments.