Near-resonance vibrational relaxation of¹²C¹⁶O in collisions with para-H₂

In collisions between 12 C 16 O and para-H 2 molecules, the near-resonance vibrational relaxation process CO(n=1)+H 2 (j=2) to CO(n=0)+H 2 (j=6)+87.03 cm -1 is known to be important. The authors present the results of a quantum mechanical calculation of the rate of this process. Comparison is made both with recent semiclassical calculations and with experiment.