A1 Journal article (refereed)
Effects of quasiparticle-vibration coupling on Gamow-Teller strength and β decay with the Skyrme proton-neutron finite-amplitude method (2024)

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

JYU authors or editors

Publication details

All authors or editors: Liu, Qunqun; Engel, Jonathan; Hinohara, Nobuo; Kortelainen, Markus

Journal or series: Physical Review C

ISSN: 2469-9985

eISSN: 2469-9993

Publication year: 2024

Publication date: 04/04/2024

Volume: 109

Issue number: 4

Article number: 044308

Publisher: American Physical Society (APS)

Publication country: United States

Publication language: English

DOI: https://doi.org/10.1103/PhysRevC.109.044308

Publication open access: Not open

Publication channel open access: 

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/94674

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.

Keywords: quasiparticles; nuclear physics

Contributing organizations

Related projects

Ministry reporting: Yes

Reporting Year: 2024

Preliminary JUFO rating: 2