Two-phonon structures for beta-decay theory

A. P. Severyukhin, N. N. Arsenyev, I. N. Borzov, R. G. Nazmitdinov, S. Åberg

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

The β-decay rates of 60Ca have been studied within a microscopic model, which is based on the Skyrme interaction T45 to construct single-particle and phonon spaces. We observe a redistribution of the Gamow-Teller strength due to the phonon-phonon coupling, considered in the model. For 60Sc, the spin-parity of the ground state is found to be 1+. We predict that the half-life of 60Ca is 0.3 ms, while the total probability of the βxn emission is 6:1%. Additionally, the random matrix theory has been applied to analyze the statistical properties of the 1+ spectrum populated in the β-decay to elucidate the obtained results.

Original languageEnglish
Title of host publicationInternational Conference on Nuclear Structure and Related Topics (NSRT18)
Volume194
DOIs
Publication statusPublished - 2018 Nov 14
Event2018 International Conference on Nuclear Structure and Related Topics, NSRT 2018 - Burgas, Bulgaria
Duration: 2018 Jun 32018 Jun 9

Publication series

NameEPJ Web of Conferences
PublisherEDP Sciences
ISSN (Print)2101-6275

Conference

Conference2018 International Conference on Nuclear Structure and Related Topics, NSRT 2018
Country/TerritoryBulgaria
CityBurgas
Period2018/06/032018/06/09

Subject classification (UKÄ)

  • Subatomic Physics

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