Radiative Capture on Nuclear Isomers: Direct Measurement of the ^{26m}Al(p,?)^{27}Si Reaction.
Radiative Capture on Nuclear Isomers: Direct Measurement of the ^{26m}Al(p,?)^{27}Si Reaction.
复制标题
核异构体的辐射捕获：^{26m}Al(p,?)^{27}Si 反应的直接测量。
DOI：
10.1103/physrevlett.128.042701
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发表时间：
2022
影响因子：
8.6
通讯作者：
Lotay G
中科院分区：
文献类型：
--
作者：
Lotay G
我们首次使用同分异构核的放射性束直接测量天体物理反应。特别是，我们测量了反应中关键 447-keV 共振的强度，发现该共振在 0.3 至 2.5 GK 温度范围内主导着热平均反应速率。这项工作代表了解决核天体物理学研究中长期存在的问题之一的关键进展，该问题涉及激发量子水平上的质子捕获反应的测量，并提供了对异构星天体物理等离子体破坏的独特见解。
We present the first direct measurement of an astrophysical reaction using a radioactive beam of isomeric nuclei. In particular, we have measured the strength of the key 447-keV resonance in thereaction to beand find that this resonance dominates the thermally averaged reaction rate for temperatures between 0.3 and 2.5 GK. This work represents a critical development in resolving one of the longest standing issues in nuclear astrophysics research, relating to the measurement of proton capture reactions on excited quantum levels, and offers unique insight into the destruction of isomericin astrophysical plasmas.