Nuclear Physics and Atomic Energy


Nuclear Physics and Atomic Energy

  ISSN: 1818-331X (Print), 2074-0565 (Online)
  Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine
  Languages: Ukrainian, English, Russian
  Periodicity: 4 times per year

  Open access peer reviewed journal


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Nucl. Phys. At. Energy 2019, volume 20, issue 2, pages 131-145.
Section: Nuclear Physics.
Received: 14.02.2019; Accepted: 11.07.2019; Published online: 27.08.2019.
PDF Full text (ru)
https://doi.org/10.15407/jnpae2019.02.131

Beta-decay and structure of odd nuclei, suppression of weak forces in nuclei

A. A. Kurteva1,*, V. E. Mitroshin2

1 Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine
2 V. N. Karazin Kharkiv National University, Kharkiv, Ukraine


*Corresponding author. E-mail address: ann.kurteva17@gmail.com

Abstract: Results of calculations in the framework of the dynamic collective model of probabilities of beta-transitions for more than 20 nuclei with mass numbers from = 31 to = 231 with one universal renormalization of weak interaction constants are presented. The quasi-particle and many-phonon (up to 10 phonons) states, as well as vacuum fluctuations of quasi-particles were taken into account. The calculated values lg ft show good agreement with the experimental data. In the aggregate the results of the calculations show that suppression of weak forces in nuclei does not depend on mass number and energy of states excited in beta-decay.

Keywords: nucleus, quasiparticle, phonon, probabilities of beta-transitions, spectroscopic characteristics.

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