Isochronous mass measurements of T-z =-1 f p-shell nuclei from projectile fragmentation of Ni-58
Isochronous mass measurements of T-z =-1 f p-shell nuclei from projectile fragmentation of Ni-58
复制标题
Ni-58 射弹碎片中 T-z =-1 f p 壳核的等时质量测量
DOI：
10.1103/physrevc.98.014319
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发表时间：
2018
影响因子：
3.1
通讯作者：
Litvinov
中科院分区：
文献类型：
--
作者：
Zhang Y. H.;Zhang P.;Zhou X. H.;Wang M.;Litvinov Yu A.;Xu H. S.;Xu X.;Shuai P.;Lam Y. H.;Chen R. J.;Yan X. L.;Bao T.;Chen X. C.;Chen H.;Fu C. Y.;He J. J.;Kubono S.;Liu D. W.;Mao R. S.;Ma W.;Sun M. Z.;Tu X. L.;Xing Y. M.;Zeng Q.;Zhou X.;Zhan W. L.;Litvinov
在兰州冷库环（CSRe）用等时质谱（IMS）相对精度测量了7个-壳核和2个低位异构体(（）和（）的原子质量。在本实验中首次测量了、、和的质量。和的质量过剩（）与文献值相比精度提高了一个数量级。与原子质量评价2012（）中的外推结果相比，分别发现了370和400 keV的束缚，而keV的束缚更小。在实验误差范围内，重新确定了四个原子核的质量，使其与最近的JYFLTRAP（芬兰Jyväskylä大学）的测量结果或CSRe中先前的IMS测量结果一致。描述了测量和数据分析的细节，并研究和讨论了新值对核结构不同方面的影响。
Atomic masses of seven,-shell nuclei fromtoand two low-lying isomers,() and(), have been measured with relative precisions ofwith isochronous mass spectrometry (IMS) at the Cooler Storage Ring (CSRe), Lanzhou. The masses of,, andwere measured for the first time in this experiment. The mass excesses () of,,, andare determined with an order of magnitude improved precision compared to the literature values.andare found to be 370 and 400 keV more bound, respectively, whilearekeV less bound than the extrapolations in the Atomic-Mass Evaluation 2012 (). The masses of the fournuclei,,, andare re-determined to be in agreement, within the experimental errors, with the recent JYFLTRAP (University of Jyväskylä, Finland) measurements or with the previous IMS measurements in CSRe. Details of the measurements and data analysis are described, and the impact of the newvalues on different aspects in nuclear structure are investigated and discussed.