✦ LIBER ✦

Accuracy of the IOS approximation for highly inelastic RT collisional energy transfer. CO-Ar

✍ Scribed by Sally Chapman; Sheldon Green

Publisher: Elsevier Science
Year: 1984
Tongue: English
Weight: 442 KB
Volume: 112
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(84)85564-5

No coin nor oath required. For personal study only.

✦ Synopsis

Rate corMants for rotational cscitation of CO by coUisions with Ar atoms have been computed within the infmite order sudden (LOS) approximation and compared with values from csact cirtssical trajectories. For CO-Ar, as for CO-He, nccurale values for X(0-i) -at least for small and intcrmcdiatcj -may bc obtained by taking the _seometric averqc of mtcs computed assuming the 10s energy is the initial energy for upward 0 -j transitions and the initial energy for downwrdj -0 transitions. Ilowevcr. cspccially for higher j, it appears preferable to interpret the 10s energy as the final kinetic rncrgy. The best overall results arc: probably obtained by averaging rates computed assuming the 10s energy is the fmal cncrgy for upward transitions and the final energy for dowrwnrd transitions.

📜 SIMILAR VOLUMES

Accuracy of the IOS approximation for hi

Accuracy of the IOS approximation for highly inelastic R-T collisional energy transfer

✍ Sheldon Green; Sally Chapman 📂 Article 📅 1983 🏛 Elsevier Science 🌐 English ⚖ 448 KB

## Rate constants for rotational excitation of CO by collisions with He atoms computed within the infinite order sudden (10s) approximation are compared with accurate quantum (coupled-states) and classical trajectory values Taking the 10s energy as the initial kinetic energy for upward, 0 -+J, tra