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原子核β衰变寿命是原子核的重要性质之一,对核物理、核天体物理以及粒子物理的研究都具有重要影响.本文简要回顾了近年来相对论准粒子无规相位近似(QRPA)对原子核β衰变寿命的研究进展.首先介绍了研究β衰变寿命的重要性以及计算β衰变寿命的理论模型,随后给出了计算β衰变寿命的Fermi理论.然后,详细介绍了相对论QRPA研究原子核β衰变寿命的最新进展,特别关注于同位旋标量道粒子-粒子剩余相互作用对研究原子核β衰变寿命的影响,并介绍了相对论QRPA预言的β衰变寿命对快中子俘获过程丰度分布的影响.最后给出总结与展望.
Atomic nucleus β decay lifetime is one of the important properties of the nucleus, which has an important influence on nuclear physics, nuclear astrophysics and particle physics.In this paper, the shortcomings of relativity theory of random phase approximation (QRPA) .First, the importance of studying the β-decay life and the theoretical model for calculating the β-decay life are introduced, followed by the Fermi theory for calculating the β-decay lifetime.Followingly, the recent progress of relativistic QRPA on the decay life of nuclei , With special attention paid to the effect of particle-particle residual interaction on the β decay life of nuclear nuclei and the effect of β-decay life of relativity theory on the abundance distribution of fast neutron capture process.Finally, Outlook.