Effects of quasiparticle-vibration coupling on Gamow-Teller strength and β decay with the Skyrme proton-neutron finite-amplitude method
Abstract
We adapt the proton-neutron finite-amplitude method, which in its original form is an efficient implementation of the Skyrme quasiparticle random phase approximation, to include the coupling of quasiparticles to like-particle phonons. The approach allows us to add beyond-quasiparticle random-phase approximation correlations to computations of Gamow-Teller strength and β-decay rates in deformed nuclei for the first time. We test the approach in several deformed isotopes for which measured strength distributions are available. The additional correlations dramatically improve agreement with the data, and will lead to improved global β-decay rates.
Main Authors
Format
Articles
Research article
Published
2024
Series
Subjects
Publication in research information system
Publisher
American Physical Society (APS)
The permanent address of the publication
https://urn.fi/URN:NBN:fi:jyu-202405033301Use this for linking
Review status
Peer reviewed
ISSN
2469-9985
DOI
https://doi.org/10.1103/PhysRevC.109.044308
Language
English
Published in
Physical Review C
Citation
- Liu, Q., Engel, J., Hinohara, N., & Kortelainen, M. (2024). Effects of quasiparticle-vibration coupling on Gamow-Teller strength and β decay with the Skyrme proton-neutron finite-amplitude method. Physical Review C, 109(4), Article 044308. https://doi.org/10.1103/PhysRevC.109.044308
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Funder(s)
Research Council of Finland
Funding program(s)
Academy Project, AoF
Akatemiahanke, SA
Additional information about funding
This work was supported in part by the U.S. Department of Energy under Contracts No. DE-FG02-97ER41019 and No. DE-SC0023175 (NUCLEI SciDAC-5 Collaboration). The work of M.K. was partly supported by the Academy of Finland under the Academy Project No. 339243. The work of N.H. was supported by the JSPS KAKENHI (Grants No. JP19KK0343, No. JP20K03964, and No. JP22H04569).
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