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Study of many-nucleon correlations in32S as a model for fragment shell effects in fission

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Zeitschrift für Physik A Atoms and Nuclei

Abstract

The formation and break-up of substructures is studied in32S as a calculable microscopic model for analogous long-range many-nucleon correlations in the fission of actinides. The calculations are performed for alpha-cluster wave functions with Volkov and Brink-Boeker interaction allowing forα,12C,16O and20Ne clustering. It turns out that the correlated motion of large magic numbers of nucleons in two groups (16O+16O) is energetically favorable already at relatively small deformations. In the second minimum the16O+16O substructure occurs with high probability (about 80%). In analogy to these results the “pre-formation” of fragments and “fragment shell” effects occuring in the fission of actinides are explained in terms of probability statements for the formation of the corresponding heavy clusters in the many-body wave function.

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Author notes

  1. H. Schultheis & R. Schultheis

    Present address: Department of Physics and Astronomy, University of Maryland, 20742, College Park, Maryland, USA

Authors and Affiliations

  1. Institut für Theoretische Physik, Universität Tübingen, Tübingen, West-Germany

    H. Schultheis, R. Schultheis & K. Wildermuth

  2. Institut für Kernphysik, Kernforschungsanlage Jülich, Jülich, West-Germany

    Amand Faessler & F. Grümmer

  3. Universität Bonn, D-5300, Bonn, West-Germany

    Amand Faessler

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  1. H. Schultheis
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  2. R. Schultheis
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  3. K. Wildermuth
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  4. Amand Faessler
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  5. F. Grümmer
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Supported in part by the Bundesministerium für Forschung und Technologie

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Schultheis, H., Schultheis, R., Wildermuth, K. et al. Study of many-nucleon correlations in32S as a model for fragment shell effects in fission. Z Physik A 286, 65–72 (1978). https://doi.org/10.1007/BF01434614

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  • DOI: https://doi.org/10.1007/BF01434614

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