Low temperature HD + $ortho$-/$para$-H${}_2$ inelastic scattering of astrophysical interest

Abstract

State-selected total cross sections and thermal rate coefficients are computed for the HD + $ortho$-/$para$-H${}_2$ rotational energy transfer collision at low temperatures: 2 K $\lesssim$ T $\lesssim$ 300 K. A modified H${}_2$-H${}_2$ potential energy surface (PES) devised by Hinde is used for this pure quantum-mechanical dynamical computation. A comparison of the new results for the HD + $ortho$-/$para$-H${}_2$ scattering problem and previous calculations computed with the use of other older PESs is presented and discussed.

Revtex preprint: 34 pages, 3 tables and 16 figures

References in corpus (5)

• A six-dimensional H2-H2 potential energy surface for bound state spectroscopy
• The Impact of HD Cooling on the Formation of the First Stars
• Rotational Energy Transfer in H2+H2
• A comparative study of the low energy HD+o-/p-H2 rotational excitation/de-excitation collisions and elastic scattering
• Ultracold collisions between two light indistinguishable diatomic molecules: elastic and rotational energy transfer in HD+HD