β-decay half-lives including first-forbidden contributions for neutron-rich Zn isotopes in the extended QRPA with neutron-proton pairing

3rd International Workshop on "State of the Art in Nuclear Cluster Physics"

Ni, Dongdong^1,2 ; Ren, Zhongzhou^1,2,3,4

Department of Physics, Institute of Acoustics, Nanjing University, Nanjing

210093, China^1

Joint Center of Nuclear Science and Technology, Nanjing University, Nanjing

210093, China^2

Kavli Institute for Theoretical Physics China, Beijing

100190, China^3

Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator, Lanzhou

730000, China^4

关键词: Delayed neutron emission;    Forbidden transitions;    Hole interactions;    Nucleon-nucleon forces;    Pairing correlations;    Pairing interactions;    Random phase approximations;    Residual particles;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/569/1/012044/pdf
DOI  :  10.1088/1742-6596/569/1/012044

来源: IOP

【 摘 要 】

The β decays of neutron-rich Zn isotopes are investigated within the extended quasiparticle random-phase approximation, where neutron-neutron, proton-proton, and neutron-proton pairing correlations are considered in the similar manner. The Brückner G-matrix obtained with the charge-dependent Bonn nucleon-nucleon force is used for the residual particle-particle and particle-hole interactions in addition to the pairing interactions. Contributions from both allowed Gamow-Teller and first-forbidden transitions are considered, and β-decay half-lives together with β-delayed neutron emission probabilities are calculated. The calculated results are found to agree well with the available experimental data.