Vibrational energy transfer in H2 + He |
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| Authors: | Hyung Kyu Shin |
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| Affiliation: | Department of Chemistry, Faculty of Science, the University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113, Japan;Division of Chemical Physics, Hoshi College of Pharmacy, 2-4 Ebara, Shinagawa-ku, Tokyo 142, Japan |
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| Abstract: | A semiclassical approach is developed to study vibrational energy transfer in H2 + He by use of the a priori interaction potential including all nonzero impact parameter collisions. The calculated values of the rate coefficient are found to be in excellent agreement with experimental data which are available in the temperature ranges 60–450 K and 1350-3000 K. The temperature dependence is shown to seriously deviate from the Landau-Teller prediction below 1000 K. The calculation was carried out over the temperature range of 30 to 10000 K. |
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