Effect of nuclear spin symmetry in cold and ultracold reactions: D + para/ortho-H$_2$

I. Simbotin; R. Côté

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arXiv · 1505.03172

Effect of nuclear spin symmetry in cold and ultracold reactions: D + para/ortho-H$_2$

I. Simbotin·R. Côté

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Abstract

We report results for reaction and vibrational quenching of the collision D with para-H$_2$($v,j=0$) and ortho-H$_2$($v,j=1$) at cold and ultracold temperatures. We investigate the effect of nuclear spin symmetry for barrier dominated processes ($0\le v\le 4$) and for one barrierless case ($v=5$). We find resonant structures for energies in the range corresponding to 0.01--10 K, which depend on the nuclear spin of H$_2$, arising from contributions of specific partial waves. We discuss the implications on the results in this benchmark system for ultracold chemistry.

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I. Simbotin, R. Côté. 2015-05-12. Effect of nuclear spin symmetry in cold and ultracold reactions: D + para/ortho-H$_2$. https://arxiv.org/abs/1505.03172

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