Effect of nuclear spin symmetry in cold and ultracold reactions: D + para/ortho-H2

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 ( $0\leqslant v\leqslant 4$ ) and for one barrierle...

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Main Authors: Ionel Simbotin, Robin Côté
Format: Article
Language:English
Published: IOP Publishing 2015-01-01
Series:New Journal of Physics
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/17/6/065003
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author Ionel Simbotin
Robin Côté
author_facet Ionel Simbotin
Robin Côté
author_sort Ionel Simbotin
collection DOAJ
description 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 ( $0\leqslant v\leqslant 4$ ) 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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spelling doaj.art-07db4cf0fe544f718fb35fdc062932182023-08-08T14:19:48ZengIOP PublishingNew Journal of Physics1367-26302015-01-0117606500310.1088/1367-2630/17/6/065003Effect of nuclear spin symmetry in cold and ultracold reactions: D + para/ortho-H2Ionel Simbotin0Robin Côté1Department of Physics, University of Connecticut , 2152 Hillside Rd., Storrs, CT 06269, USADepartment of Physics, University of Connecticut , 2152 Hillside Rd., Storrs, CT 06269, USAWe 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 ( $0\leqslant v\leqslant 4$ ) 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.https://doi.org/10.1088/1367-2630/17/6/065003cold moleculeschemical reactionsastrochemistry
spellingShingle Ionel Simbotin
Robin Côté
Effect of nuclear spin symmetry in cold and ultracold reactions: D + para/ortho-H2
New Journal of Physics
cold molecules
chemical reactions
astrochemistry
title Effect of nuclear spin symmetry in cold and ultracold reactions: D + para/ortho-H2
title_full Effect of nuclear spin symmetry in cold and ultracold reactions: D + para/ortho-H2
title_fullStr Effect of nuclear spin symmetry in cold and ultracold reactions: D + para/ortho-H2
title_full_unstemmed Effect of nuclear spin symmetry in cold and ultracold reactions: D + para/ortho-H2
title_short Effect of nuclear spin symmetry in cold and ultracold reactions: D + para/ortho-H2
title_sort effect of nuclear spin symmetry in cold and ultracold reactions d para ortho h2
topic cold molecules
chemical reactions
astrochemistry
url https://doi.org/10.1088/1367-2630/17/6/065003
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