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M. Vieira (University of Rochester), J.F. Babb, N. Balakrishnan (SAO)
We present the results of quantum mechanical scattering calculations of rovibrational transitions in ortho- and para-H2 induced by collisions with He atoms. The calculations were performed using a reliable potential energy surface. Cross sections were obtained for kinetic energies between 10-4 and 3 eV and for the temperature range 100{\leq}T{\leq}4000 K. Comparisons are made with previous calculations and with semi-classical calculations, where available.