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On the interpretation of heavy-ion sub-barrier fusion data

  • Nuclei
  • Published:
Zeitschrift für Physik A Atoms and Nuclei

Abstract

We study the well-known deviation of measured fusion cross-sections below the barrier from predictions of one-dimensional tunnelling models. A simple parametrisation of measured excitation functions is discussed which allows to identify a smooth general trend depending only on gross nuclear properties. The parametrisation is substantiated by quantum mechanically exact calculations in a two-dimensional tunnelling model. Various possibilities for the geometrical interpretation of the second degree of freedom are discussed. Neck formation is identified as the most probable degree of freedom effecting the overall behavior of sub-barrier fusion.

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Authors and Affiliations

  1. Bereich Kern- und Strahlenphysik, Hahn-Meitner-Institut für Kernforschung Berlin, Germany

    H. J. Krappe, K. Möhring, M. C. Nemes & H. Rossner

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  1. H. J. Krappe
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  2. K. Möhring
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  3. M. C. Nemes
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  4. H. Rossner
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Krappe, H.J., Möhring, K., Nemes, M.C. et al. On the interpretation of heavy-ion sub-barrier fusion data. Z Physik A 314, 23–31 (1983). https://doi.org/10.1007/BF01411825

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  • DOI: https://doi.org/10.1007/BF01411825

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