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Comparative analysis of the Compton ionization of hydrogen and positronium

  • Regular Article – Atomic Physics
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Abstract

The paper deals with the Compton disintegration of positronium and a comparison of the differential cross sections of this process with the similar cross sections in the case of the Compton ionization of the hydrogen atom. Special attention is paid to the resonances arising, when the electron and positron move parallel to each other in continuum states with the same velocities and zero relative momentum. It is likely that a manifestation of this effect in the double differential cross section (differential in the electron energy and angle) is found as an additional peak, which grows with a decrease in the photon energy.

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Data Availability Statement

This manuscript has no associated data or the data will not be deposited. [Authors’ comment: The computed data used for the figures are available on request.]

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Acknowledgements

The authors are grateful to the experimental team headed by Prof. R. Dörner (Institut für Kernphysik, J. W. Goethe Universität, Frankfurt/Main, Germany) whose experiments inspired us for writing this paper, and for long-time collaboration. The work supported in part by the Heisenberg-Landau program. Yu. P. is grateful to Professor F.M. Pen’kov for useful discussions.

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Authors and Affiliations

  1. Physics Faculty, Lomonosov Moscow State University, Moscow, Russia

    Ivan S. Stepantsov

  2. Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, Moscow, Russia

    Igor P. Volobuev & Yuri V. Popov

  3. Joint Institute for Nuclear Research, Dubna, Russia

    Yuri V. Popov

Authors
  1. Ivan S. Stepantsov
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  2. Igor P. Volobuev
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  3. Yuri V. Popov
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All authors contributed equally to the paper.

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Stepantsov, I.S., Volobuev, I.P. & Popov, Y.V. Comparative analysis of the Compton ionization of hydrogen and positronium. Eur. Phys. J. D 76, 30 (2022). https://doi.org/10.1140/epjd/s10053-022-00360-3

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  • DOI: https://doi.org/10.1140/epjd/s10053-022-00360-3

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