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首页> 外文期刊>Journal of Physics, G. Nuclear and Particle Physics: An Institute of Physics Journal >Calculations of the β-decay half-lives of neutron-rich nuclei
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Calculations of the β-decay half-lives of neutron-rich nuclei

机译：富中子核β衰变半衰期的计算

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摘要

The β-decay half-lives of neutron-rich nuclei have been systematically investigated using the proton-neutron quasiparticle random-phase approximation (pnQRPA) with a δ-form Gamow-Teller residual interaction. The particle-hole and particle-particle components of the Gamow-Teller residual interaction are consistently taken into account in dealing with the pnQRPA matrix equation, and the dependence of the results on them is discussed. Even-even nuclei with atomic numbers Z = 6-58 are considered in the calculations, where some newly measured neutron-rich nuclei are included. The calculated β -decay half-lives are found to be in good agreement with the available experimental data. The comparison with other theoretical results is also given. Moreover, predictions on β-decay half-lives are made for some extremely neutron-rich nuclei, which could be useful for future experiments.
机译：使用质子中子准粒子随机相近似（pnQRPA）和δ型Gamow-Teller残余相互作用，系统地研究了富中子核的β衰变半衰期。在处理pnQRPA矩阵方程时，始终考虑Gamow-Teller残余相互作用的粒子-空穴和粒子-粒子组分，并讨论了结果对它们的依赖性。计算中考虑了原子序数Z = 6-58的偶偶核，其中包括一些新近测量的富中子核。发现计算出的β衰变半衰期与可获得的实验数据非常吻合。还给出了与其他理论结果的比较。此外，对于某些极富中子核的β衰变半衰期进行了预测，这可能对将来的实验有用。

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