Effects of quasiparticle-vibration coupling on Gamow-Teller strength and β decay with the Skyrme proton-neutron finite-amplitude method

Liu, Qunqun; Engel, Jonathan; Hinohara, Nobuo; Kortelainen, Markus

doi:10.1103/PhysRevC.109.044308

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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

Julkaistu sarjassa

Physical Review C

Tekijät

Liu, Qunqun |

Engel, Jonathan |

Hinohara, Nobuo |

Kortelainen, Markus

Päivämäärä

2024

Tekijänoikeudet

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.

Julkaisija

American Physical Society (APS)

ISSN Hae Julkaisufoorumista

2469-9985

Rahoittaja(t)

Suomen Akatemia

Rahoitusohjelmat(t)

Akatemiahanke, SA

Lisätietoja rahoituksesta

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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