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Self-consistent approach to beta decay and delayed neutron emission

  • Nuclei
  • Theory
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Abstract

A brief overview of the recent self-consistent studies of nuclear beta decay is given including the relativistic quasi-particle random-phase approximation or QRPA and Finite Amplitude Method. The results of our self-consistent continuum QRPA model based on the density functional description of the ground states are presented. They are in a good agreement with the recent experimental beta-decay half-lives and delayed neutron emission branchings for the nuclei approaching (and beyond) the neutron closed shells N = 50 near 78Ni and N = 82 near 132Sn. A comparison with the recent calculations from relativistic QRPA model, Finite Amplitude Method and semi-microscopic finite-range droplet model is performed. An importance of the quasi-particle phonon coupling is stressed for the description of the beta decay and delayed multi-neutron emission rates. A strategy of extending our approach to the deformed nuclei and the open problems are discussed.

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Authors and Affiliations

  1. National Research Centre “Kurchatov Institute,”, Moscow, Russia

    I. N. Borzov

  2. Bogoliubov Laboratory of Theoretical Physics, Joint Institute of Nuclear Research, Dubna, Russia

    I. N. Borzov

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  1. I. N. Borzov
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Correspondence to I. N. Borzov.

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Borzov, I.N. Self-consistent approach to beta decay and delayed neutron emission. Phys. Atom. Nuclei 79, 910–923 (2016). https://doi.org/10.1134/S1063778816060041

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