~（176）Lu中839 keV的5态性质和~（176）Lu的s过程分支
Properties of the 5- state at 839 keV in 176Lu and the s-process branching at A = 176
摘要：
在质量数A = 176处的s过程分支取决于176 Lu中高K基态和低K异构体之间的耦合。这种耦合是基于在较高能量下通过中间态的电磁跃迁。本文综述了实验证实的最低中间态839 keV的性质，并根据839 keV的新实验数据计算了恒星条件下低K态和高K态之间的跃迁速率。进一步的候选人的中间状态的属性进行了简要分析。据发现，高K基态和低K异构体之间的耦合在176 Lu是至少一个数量级强于先前假设的解释的176 Lu/176 Hf对作为一个S-过程温度计的关键后果。
英文摘要：
The s-process branching at mass number A = 176 depends on the coupling between the high-K ground state and a low-lying low-K isomer in 176Lu. This coupling is based on electromagnetic transitions via intermediate states at higher energies. The properties of the lowest experimentally confirmed intermediate state at 839 keV are reviewed, and the transition rate between low-K and high-K states under stellar conditions is calculated on the basis of new experimental data for the 839 keV state. Properties of further candidates for intermediate states are briefly analyzed. It is found that the coupling between the high-K ground state and the low-K isomer in 176Lu is at least one order of magnitude stronger than previously assumed leading to crucial consequences for the interpretation of the 176Lu/176Hf pair as an s-process thermometer.
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