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Title: Electron Localization in Dissociating H 2 + by Retroaction of a Photoelectron onto Its Source

Abstract

We investigate the dissociation of H 2 + into a proton and a H 0 after single ionization with photons of an energy close to the threshold. We find that the p + and the H 0 do not emerge symmetrically in the case of the H 2 + dissociating along the 1sσ g ground state. Instead, a preference for the ejection of the p + in the direction of the escaping photoelectron can be observed. This symmetry breaking is strongest for very small electron energies. Our experiment is consistent with a recent prediction by Serov and Kheifets. In their model, which treats the photoelectron classically, the symmetry breaking is induced by the retroaction of the long-range Coulomb potential onto the dissociating H 2 +.

Authors:
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  1. J.W. Goethe Univ., Frankfurt (Germany)
  2. J.W. Goethe Univ., Frankfurt (Germany); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  3. Helmholtz-Zentrum Berlin fur Materialien und Energie, Berlin (Germany)
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1379047
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review Letters
Additional Journal Information:
Journal Volume: 116; Journal Issue: 4; Journal ID: ISSN 0031-9007
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS

Citation Formats

Waitz, M., Asliturk, D., Wechselberger, N., Gill, H. K., Rist, J., Wiegandt, F., Goihl, C., Kastirke, G., Weller, M., Bauer, T., Metz, D., Sturm, F. P., Voigtsberger, J., Zeller, S., Trinter, F., Schiwietz, G., Weber, T., Williams, J. B., Schoffler, M. S., Schmidt, L. Ph. H., Jahnke, T., and Dorner, R. Electron Localization in Dissociating H2+ by Retroaction of a Photoelectron onto Its Source. United States: N. p., 2016. Web. doi:10.1103/PhysRevLett.116.043001.
Waitz, M., Asliturk, D., Wechselberger, N., Gill, H. K., Rist, J., Wiegandt, F., Goihl, C., Kastirke, G., Weller, M., Bauer, T., Metz, D., Sturm, F. P., Voigtsberger, J., Zeller, S., Trinter, F., Schiwietz, G., Weber, T., Williams, J. B., Schoffler, M. S., Schmidt, L. Ph. H., Jahnke, T., & Dorner, R. Electron Localization in Dissociating H2+ by Retroaction of a Photoelectron onto Its Source. United States. doi:10.1103/PhysRevLett.116.043001.
Waitz, M., Asliturk, D., Wechselberger, N., Gill, H. K., Rist, J., Wiegandt, F., Goihl, C., Kastirke, G., Weller, M., Bauer, T., Metz, D., Sturm, F. P., Voigtsberger, J., Zeller, S., Trinter, F., Schiwietz, G., Weber, T., Williams, J. B., Schoffler, M. S., Schmidt, L. Ph. H., Jahnke, T., and Dorner, R. Tue . "Electron Localization in Dissociating H2+ by Retroaction of a Photoelectron onto Its Source". United States. doi:10.1103/PhysRevLett.116.043001. https://www.osti.gov/servlets/purl/1379047.
@article{osti_1379047,
title = {Electron Localization in Dissociating H2+ by Retroaction of a Photoelectron onto Its Source},
author = {Waitz, M. and Asliturk, D. and Wechselberger, N. and Gill, H. K. and Rist, J. and Wiegandt, F. and Goihl, C. and Kastirke, G. and Weller, M. and Bauer, T. and Metz, D. and Sturm, F. P. and Voigtsberger, J. and Zeller, S. and Trinter, F. and Schiwietz, G. and Weber, T. and Williams, J. B. and Schoffler, M. S. and Schmidt, L. Ph. H. and Jahnke, T. and Dorner, R.},
abstractNote = {We investigate the dissociation of H2+ into a proton and a H0 after single ionization with photons of an energy close to the threshold. We find that the p+ and the H0 do not emerge symmetrically in the case of the H2+ dissociating along the 1sσg ground state. Instead, a preference for the ejection of the p+ in the direction of the escaping photoelectron can be observed. This symmetry breaking is strongest for very small electron energies. Our experiment is consistent with a recent prediction by Serov and Kheifets. In their model, which treats the photoelectron classically, the symmetry breaking is induced by the retroaction of the long-range Coulomb potential onto the dissociating H2+.},
doi = {10.1103/PhysRevLett.116.043001},
journal = {Physical Review Letters},
number = 4,
volume = 116,
place = {United States},
year = {2016},
month = {1}
}

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