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Pauli-Principle Driven Correlations in Four-Neutron Nuclear Decays

  • Fields, Particles, and Nuclei
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Abstract

Mechanism of simultaneous non-sequential four-neutron (4n) emission (or “true” 4n-decay) has been considered in phenomenological five-body approach. This approach is analogous to the model of the direct decay to the continuum often applied to 2n- and 2p-decays. It is demonstrated that 4n-decay fragments should have specific energy and angular correlations reflecting strong spatial correlations of “valence” nucleons orbiting in their 4n-precursors. Due to the Pauli exclusion principle, the valence neutrons are pushed to the symmetry-allowed configurations in the 4n-precursor structure, which causes a “Pauli focusing” effect. Prospects of the observation of the Pauli focusing have been considered for the 4n-precursors 7H and 28O. Fingerprints of their nuclear structure or/and decay dynamics are predicted.

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Authors and Affiliations

  1. Flerov Laboratory of Nuclear Reactions, Joint Institute for Nuclear Research, Dubna, Moscow region, 141980, Russia

    P. G. Sharov, L. V. Grigorenko & A. N. Ismailova

  2. Moscow Engineering Physics Institute, National Research Nuclear University MEPhI, Moscow, 115409, Russia

    L. V. Grigorenko

  3. National Research Center Kurchatov Institute, Moscow, 123182, Russia

    L. V. Grigorenko

  4. Department of Physics, Chalmers University of Technology, Göteborg, 41296, Sweden

    M. V. Zhukov

Authors
  1. P. G. Sharov
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  2. L. V. Grigorenko
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  3. A. N. Ismailova
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  4. M. V. Zhukov
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Correspondence to P. G. Sharov.

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Sharov, P.G., Grigorenko, L.V., Ismailova, A.N. et al. Pauli-Principle Driven Correlations in Four-Neutron Nuclear Decays. Jetp Lett. 110, 5–14 (2019). https://doi.org/10.1134/S0021364019130046

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  • DOI: https://doi.org/10.1134/S0021364019130046

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