Rate coefficients for rovibrational transitions in H_2 due to collisions with He

Abstract

We present quantum mechanical and quasiclassical trajectory calculations of cross sections for rovibrational transitions in ortho- and para-H_2 induced by collisions with He atoms. Cross sections were obtained for kinetic energies between 10^-4 and 3 eV, and the corresponding rate coefficients were calculated for the temperature range 100<T<4000 K. Comparisons are made with previous calculations.

arXiv comment21 pages, 2 figures, AAS, epsf

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