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Mechanisms of Modulation Formation in Elastic Diffraction Scattering of Charged Particles

  • INTERACTION OF PLASMA, PARTICLE BEAMS, AND RADIATION WITH MATTER
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Abstract

In this work, the authors describe experimental data on the angular distributions of alpha particles on light alpha-cluster nuclei. The angular distributions of elastic scattering of alpha particles are analyzed under the assumption of complete absorption inside the sphere of the cluster structure and the sphere of the interaction core. These assumptions made it possible to decompose the scattering amplitude into components—scattering on the nucleus itself and on different cluster structures. The calculations result in the following. The amplitude for describing diffraction elastic scattering by 4n ± 1 light nuclei in the framework of the theory of diffraction scattering is a superposition of wave functions in the scattering approximation on a completely black core and on its absolutely black substructures. The nucleon association modes, as well as the scattering modes on the correlated motion of nucleons and spatially separated nucleons, make a significant contribution to the total scattering amplitude. This manifests itself as an increase in angular distributions due to the interference of modes of various cluster structures and nucleons. Owing to these effects, not only an uneven rise in the angular distributions of differential cross sections over the Rutherford section is possible, but also a rise at rear angles.

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Funding

This work was supported by the state grant financing of basic research, project no. IRN AR05131884.

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Authors and Affiliations

  1. National Open Nanotechnology Laboratory, Al-Farabi Kazakh National University, 050040, Almaty, Kazakhstan

    V. V. Dyachkov, Yu. A. Zaripova & A. V. Yushkov

  2. Al-Farabi Kazakh National University, 050040, Almaty, Kazakhstan

    K. S. Dyussebayeva

Authors
  1. V. V. Dyachkov
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  2. K. S. Dyussebayeva
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  3. Yu. A. Zaripova
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  4. A. V. Yushkov
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Correspondence to V. V. Dyachkov.

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The authors declare that they have no conflicts of interest.

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Translated by A. Nikol’skii

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Dyachkov, V.V., Dyussebayeva, K.S., Zaripova, Y.A. et al. Mechanisms of Modulation Formation in Elastic Diffraction Scattering of Charged Particles. Phys. Atom. Nuclei 83, 1705–1713 (2020). https://doi.org/10.1134/S1063778820100051

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