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Head-on Collisions of Xe Atoms Against Superfluid \(^4\)He Nanodroplets

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Abstract

We study the head-on collision of a heliophilic xenon atom with a superfluid \(^4\)He droplet made of 1000 atoms. At variance with the findings for a heliophobic cesium atom of a similar atomic weight, it is found that the xenon atom has to hit the droplet with a large kinetic energy in order to get across it without being captured. When it is not captured, the xenon impurity does not emerge as a bare atom; instead, due to its heliophilic character it carries away some helium atoms.

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Acknowledgements

This work has been performed under Grants No. FIS2014-52285-C2-1-P from DGI, Spain, and 2014SGR401 from Generalitat de Catalunya and using HPC resources from CALMIP (Grant P1039). AL has been supported by the ME (Spain) FPI program, Grant No. BES-2012-057439. MB thanks the Université Fédérale Toulouse Midi-Pyrénées for financial support through the “Chaires d’Attractivité 2014” Programme IMDYNHE.

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Authors and Affiliations

  1. Laboratoire des Collisions, Agrégats, Réactivité, IRSAMC, UMR 5589, CNRS, Université Toulouse 3, 118 Route de Narbonne, 31062, Toulouse Cedex 09, France

    François Coppens & Nadine Halberstadt

  2. Departament FQA, Facultat de Física, and IN²UB, Universitat de Barcelona, Diagonal 645, 08028, Barcelona, Spain

    Antonio Leal, Manuel Barranco & Marti Pi

Authors
  1. François Coppens
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  2. Antonio Leal
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  3. Manuel Barranco
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  4. Nadine Halberstadt
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  5. Marti Pi
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Correspondence to François Coppens.

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Coppens, F., Leal, A., Barranco, M. et al. Head-on Collisions of Xe Atoms Against Superfluid \(^4\)He Nanodroplets. J Low Temp Phys 187, 439–445 (2017). https://doi.org/10.1007/s10909-016-1690-x

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  • DOI: https://doi.org/10.1007/s10909-016-1690-x

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