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Extended quantum diffusion approach to reactions of astrophysical interests

  • Regular Article –Theoretical Physics
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Abstract

The quantum diffusion approach is extended to low-energy fusion (capture) reactions of light- and medium-mass nuclei. The dependence of the friction parameter on bombarding energy is taken into account. A simple analytic expression is obtained for the capture probability at extreme sub-barrier energies. The calculated cross-sections are in good agreement with the experimental data. The fusion excitation functions calculated within the quantum diffusion and WKB approaches are compared and presented in the astrophysical S-factor representation.

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Data Availability Statement

This manuscript has associated data in a data repository. [Authors’ comment: The experimental data used in the present study was published in Refs. [7,8,9,10,11,12,13,14,15, 20, 22,23,24, 48, 49].]

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Acknowledgements

V.V.S. acknowledges the Alexander von Humboldt–Stiftung (Bonn). This work was partially supported by Russian Foundation for Basic Research (Moscow, Grant no. 17-52-12015), DFG (Bonn, contract Le439/16), and Tomsk Polytechnic University Competitiveness Enhancement Program Grant.

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Authors and Affiliations

  1. Joint Institute for Nuclear Research, 141980, Dubna, Russia

    V. V. Sargsyan, G. G. Adamian & N. V. Antonenko

  2. Institut für Theoretische Physik der Justus–Liebig–Universität, 35392, Giessen, Germany

    V. V. Sargsyan & H. Lenske

  3. Tomsk Polytechnic University, 634050, Tomsk, Russia

    N. V. Antonenko

Authors
  1. V. V. Sargsyan
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  2. G. G. Adamian
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  3. N. V. Antonenko
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  4. H. Lenske
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Corresponding author

Correspondence to G. G. Adamian.

Additional information

Communicated by F. Gulminelli.

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Sargsyan, V.V., Adamian, G.G., Antonenko, N.V. et al. Extended quantum diffusion approach to reactions of astrophysical interests. Eur. Phys. J. A 56, 19 (2020). https://doi.org/10.1140/epja/s10050-019-00009-7

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