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. 2012 Jul 13;109(2):023201.
doi: 10.1103/PhysRevLett.109.023201. Epub 2012 Jul 11.

Appearance of low energy resonances in CO-para-H2 inelastic collisions

Simon Chefdeville  1 , Thierry Stoecklin, Astrid Bergeat, Kevin M Hickson, Christian Naulin, Michel Costes
Affiliations

Appearance of low energy resonances in CO-para-H2 inelastic collisions

Simon Chefdeville et al. Phys Rev Lett. .

Abstract

We report on crossed-beam experiments and quantum-mechanical calculations performed on the CO(j=0) + H2(j=0) → CO(j=1) + H2(j=0) system. The experimental cross sections determined in the threshold region of the CO(j=0 → j=1) transition at 3.85 cm(-1) show resonance structures in good qualitative agreement with the theoretical ones. These results suggest that the potential energy surface which describes the CO-H2 van der Waals interaction should be reinvestigated for good quantitative agreement.

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