Calculations of the &beta;-decay half-lives of neutron-deficient nuclei

Wenjin Tan; Dongdong Ni; Zhongzhou Ren

doi:10.1088/1674-1137/41/5/054103

Chinese Physics C> 2017, Vol. 41> Issue(5) : 054103 DOI: 10.1088/1674-1137/41/5/054103

Calculations of the β-decay half-lives of neutron-deficient nuclei

Wenjin Tan ^1,, ,
Dongdong Ni ^1,2,, ,
Zhongzhou Ren ^1,2,3,,

1.
Department of Physics, Nanjing University, Nanjing 210093, China
2.
Department of Physics, Nanjing University, Nanjing 210093, China
3.
Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator, Lanzhou 730000, China
4.
Kavli Institute for Theoretical Physics China, Beijing 100190, China

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Abstract：
In this work, β⁺/EC decays of some medium-mass nuclei are investigated within the extended quasiparticle random-phase approximation (QRPA), where neutron-neutron, proton-proton and neutron-proton (np) pairing correlations are taken into consideration in the specialized Hartree-Fock-Bogoliubov (HFB) transformation. In addition to the pairing interaction, the Brückner G-matrix obtained with the charge-dependent Bonn nucleon-nucleon force is used for the residual particle-particle and particle-hole interactions. Calculations are performed for even-even proton-rich isotopes ranging from Z =24 to Z =34. It is found that the np pairing interaction plays a significant role in β-decay for some nuclei far from stability. Compared with other theoretical calculations, our calculations show good agreement with the available experimental data. Predictions of β-decay half-lives for some very neutron-deficient nuclei are made for reference.
- proton-rich nuclei ,
- +/EC decay ,
- quasiparticle random-phase approximation ,
- neutron-proton pairing

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Wenjin Tan, Dongdong Ni and Zhongzhou Ren. Calculations of the β-decay half-lives of neutron-deficient nuclei[J]. Chinese Physics C, 2017, 41(5): 054103. doi: 10.1088/1674-1137/41/5/054103

Wenjin Tan, Dongdong Ni and Zhongzhou Ren. Calculations of the β-decay half-lives of neutron-deficient nuclei[J]. Chinese Physics C, 2017, 41(5): 054103. doi: 10.1088/1674-1137/41/5/054103 shu

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Received: 2016-11-10
Revised: 2016-12-20

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Supported by National Nature Science Foundation of China (11535004, 11375086, 11120101005, 11175085 and 11235001), 973 Nation Major State Basic Research and Development of China (2013CB834400) and Science and Technology Development Fund of Macau (020/2014/A1 and 039/2013/A2)

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沈阳化工大学材料科学与工程学院沈阳 110142

Calculations of the β-decay half-lives of neutron-deficient nuclei

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Calculations of the β-decay half-lives of neutron-deficient nuclei

Corresponding author: Wenjin Tan,

Corresponding author: Dongdong Ni,

Corresponding author: Zhongzhou Ren,

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