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

• 来源期刊: 中国物理C（英文版）
• 年，卷（期）: 2017,（5）
• 页码范围: 122-128
• 页数: 7页
• 语种: 英文
• DOI: 10.1088/1674-1137/41/5/054103

摘要

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.