Rate Coefficients for Ro‐vibrational Transitions in H2Due to Collisions with He

1999/04/27 by N. Balakrishnan, Maíra Baé Baladão Vieira, M. Vieira +5
Chemistry · Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Quantum, superfluid, helium dynamics #Spectroscopy and Laser Applications #astro-ph

paper · pdf · doi:10.1086/307846

published as Astrophys.J. 524 (1999) 1122 · 21 pages, 2 figures, AAS, epsf

arxiv created 1999/04/27 · openalex publication_date 1999/10/20 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/31

Abstract

We present quantum mechanical and quasi-classical trajectory calculations of cross sections for ro-vibrational 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 K ≤ T ≤ 4000 K. Comparisons are made with previous calculations.

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