Recoil velocity

In addition to CO(v = 0—2,7) populations, Houston and Kable recorded CO Doppler profiles to measure the translational energy release, and the vector correlation between the recoil velocity vector and the angular momentum vector of CO. Together, these data paint a compelling picture that two pathways to CH4 + CO are operative. The rotationally hot CO population (85% of total CO)... 

Because of the large mass of the nucleus and the low recoil velocity involved, we may use the nonrelativistic approximation... 

The fragment recoil velocity resolution depends on the divergence of the molecular beam, molecular beam velocity distribution in the direction of the molecular beam axis, and the distance of fragments expanded in the velocity axis of the two-dimensional detector. If the divergence of the molecular beam is small and the fragment recoil velocity is much larger than the velocity difference of parent molecules, the recoil velocity resolution can be simply expressed as AV/V = s/L, where L is the length of expansion of... 

Similar results were obtained for the photodissociation of d Q-ethylbenzene and n-propylbenzene, as illustrated in Figs. 27 and 28. For n-propylbenzene, the intensity decay rate of the disk-like image was found to be 4.9 x 104 s 1, and the product growth rates obtained from simulation are 5 x 104 s 1 and larger than 5 x 105 s 1 for the slow velocity component and the fast recoil velocity component, respectively. 

The angular distributions of the 0(3P2) fragments show the degree of correlation between the product recoil velocity (v) with the electric vector of the dissociating light and are typically characterized by the lab frame anisotropy parameter (/ ) given in the equation,52,53... 

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