Calculations of the β-decay half-lives of neutron-deficient nuclei
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） trans...
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| Published in | Chinese physics C Vol. 41; no. 5; pp. 122 - 128 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
01.05.2017
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| Online Access | Get full text |
| ISSN | 1674-1137 0254-3052 |
| DOI | 10.1088/1674-1137/41/5/054103 |
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| Summary: | 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 Br¨uckner 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 inβ-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. |
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| Bibliography: | 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 Br¨uckner 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 inβ-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. 11-5641/O4 nuclei neutron decay lives pairing proton deficient Hartree isotopes nucleus Wenjin Tan Dongdong Ni Zhongzhou Ren（ 1 Department of Physics, Nanjing University, Nanjing 210093, China 2 Center of Theoretical Nuclear Physics, National Laboratory of Heavy-Ion Accelerator, Lanzhou 730000, China a Kavli Institute for Theoretical Physics China, Beijing 100190, China 4 Macao Univ Sci ＆ Technol, Space Sci lnst, Maeau, Peoples R China） |
| ISSN: | 1674-1137 0254-3052 |
| DOI: | 10.1088/1674-1137/41/5/054103 |