Half-lives of Sr73 and Y76 and the consequences for the proton dripline
Half-lives of Sr73 and Y76 and the consequences for the proton dripline
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Sr73 和 Y76 的半衰期以及对质子滴线的影响
DOI：
10.1103/physrevc.100.044311
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发表时间：
2019
影响因子：
3.1
通讯作者：
Sinclair L. et al.
中科院分区：
文献类型：
--
作者：
Sinclair L. et al.
在RIKEN的RI Beam Factory，用345 MeV/nucleonprimary束在740 mg/靶上碎裂产生7个核后，在缺中子质量-70区域测定了它们的半衰期。结果包括两个新的（和）半衰期和更精确的测量基态半衰期。新的结果进行了讨论，参考以前发表的计算预测的质子滴线的位置在轻Sr和Y区域的核图表。此外，在基态结构的差异和讨论的援助密度泛函理论计算。这些提供了一个可能的解释，为什么经历质子衰变，而共轭核主要经历衰变。
The half-lives of seven nuclei have been determined in the neutron-deficient mass-70 region following their production via fragmentation of a 345 MeV/nucleonprimary beam on a 740 mg/target at the RI Beam Factory, RIKEN. The results include two new (and) half-lives and a more precise measurement for the ground-state half-life of. The new results are discussed with reference to previously published calculations that predict the location of the proton dripline in the light Sr and Y region of the nuclear chart. In addition, differences in the ground-state structure ofandare discussed with the aid of density functional theory calculations. These provide a possible explanation for whyundergoes proton decay while the-conjugate nucleuspredominantly undergoesdecay.