Resolving rainbows with superimposed diffraction oscillations in NO + rare gas scattering: experiment and theory

A Stark decelerator is used in combination with velocity map imaging to study collisions of NO radicals with rare gas atoms in a counterpropagating crossed beam geometry. This powerful combination of techniques results in scattering images with extremely high resolution, in which rotational and L-ty...

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Main Authors: Jolijn Onvlee, Sjoerd N Vogels, Ad van der Avoird, Gerrit C Groenenboom, Sebastiaan Y T van de Meerakker
Format: Article
Language:English
Published: IOP Publishing 2015-01-01
Series:New Journal of Physics
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/17/5/055019
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author Jolijn Onvlee
Sjoerd N Vogels
Ad van der Avoird
Gerrit C Groenenboom
Sebastiaan Y T van de Meerakker
author_facet Jolijn Onvlee
Sjoerd N Vogels
Ad van der Avoird
Gerrit C Groenenboom
Sebastiaan Y T van de Meerakker
author_sort Jolijn Onvlee
collection DOAJ
description A Stark decelerator is used in combination with velocity map imaging to study collisions of NO radicals with rare gas atoms in a counterpropagating crossed beam geometry. This powerful combination of techniques results in scattering images with extremely high resolution, in which rotational and L-type rainbows with superimposed quantum mechanical diffraction oscillations are visible. The experimental data are in excellent agreement with quantum mechanical scattering calculations. Furthermore, hard-shell models and a partial wave analysis are used to clarify the origin of the various structures that are visible. A specific feature is found for NO molecules colliding with Ar atoms that is extremely sensitive to the precise shape of the potential energy surface. Its origin is explained in terms of interfering partial waves with very high angular momentum, corresponding to trajectories with large impact parameters.
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spelling doaj.art-35dbd1200a5c4bf2991966e561d2f7e12023-08-08T14:19:13ZengIOP PublishingNew Journal of Physics1367-26302015-01-0117505501910.1088/1367-2630/17/5/055019Resolving rainbows with superimposed diffraction oscillations in NO + rare gas scattering: experiment and theoryJolijn Onvlee0Sjoerd N Vogels1Ad van der Avoird2Gerrit C Groenenboom3Sebastiaan Y T van de Meerakker4Radboud University , Institute for Molecules and Materials, Heijendaalseweg 135, 6525 AJ Nijmegen, The NetherlandsRadboud University , Institute for Molecules and Materials, Heijendaalseweg 135, 6525 AJ Nijmegen, The NetherlandsRadboud University , Institute for Molecules and Materials, Heijendaalseweg 135, 6525 AJ Nijmegen, The NetherlandsRadboud University , Institute for Molecules and Materials, Heijendaalseweg 135, 6525 AJ Nijmegen, The NetherlandsRadboud University , Institute for Molecules and Materials, Heijendaalseweg 135, 6525 AJ Nijmegen, The NetherlandsA Stark decelerator is used in combination with velocity map imaging to study collisions of NO radicals with rare gas atoms in a counterpropagating crossed beam geometry. This powerful combination of techniques results in scattering images with extremely high resolution, in which rotational and L-type rainbows with superimposed quantum mechanical diffraction oscillations are visible. The experimental data are in excellent agreement with quantum mechanical scattering calculations. Furthermore, hard-shell models and a partial wave analysis are used to clarify the origin of the various structures that are visible. A specific feature is found for NO molecules colliding with Ar atoms that is extremely sensitive to the precise shape of the potential energy surface. Its origin is explained in terms of interfering partial waves with very high angular momentum, corresponding to trajectories with large impact parameters.https://doi.org/10.1088/1367-2630/17/5/055019inelastic scatteringdifferential cross-sectionsmolecular beamsStark deceleratorion imaging34.10.+x
spellingShingle Jolijn Onvlee
Sjoerd N Vogels
Ad van der Avoird
Gerrit C Groenenboom
Sebastiaan Y T van de Meerakker
Resolving rainbows with superimposed diffraction oscillations in NO + rare gas scattering: experiment and theory
New Journal of Physics
inelastic scattering
differential cross-sections
molecular beams
Stark decelerator
ion imaging
34.10.+x
title Resolving rainbows with superimposed diffraction oscillations in NO + rare gas scattering: experiment and theory
title_full Resolving rainbows with superimposed diffraction oscillations in NO + rare gas scattering: experiment and theory
title_fullStr Resolving rainbows with superimposed diffraction oscillations in NO + rare gas scattering: experiment and theory
title_full_unstemmed Resolving rainbows with superimposed diffraction oscillations in NO + rare gas scattering: experiment and theory
title_short Resolving rainbows with superimposed diffraction oscillations in NO + rare gas scattering: experiment and theory
title_sort resolving rainbows with superimposed diffraction oscillations in no rare gas scattering experiment and theory
topic inelastic scattering
differential cross-sections
molecular beams
Stark decelerator
ion imaging
34.10.+x
url https://doi.org/10.1088/1367-2630/17/5/055019
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AT gerritcgroenenboom resolvingrainbowswithsuperimposeddiffractionoscillationsinnoraregasscatteringexperimentandtheory
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