Nuclear Structure and Decay Data for A=71 Isobars

IF 2.8 1区 物理与天体物理 Q2 PHYSICS, NUCLEAR Nuclear Data Sheets Pub Date : 2023-04-01 DOI:10.1016/j.nds.2023.02.001
Balraj Singh , Jun Chen
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引用次数: 2

Abstract

Experimental nuclear spectroscopic data are evaluated for 12 known nuclides of mass number=71 (Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, As, Se, Br, Kr). Detailed compiled and evaluated information is presented for each reaction and decay experiment. The βn decay of 72Co to 71Ni is included in this work, while for βn decay of 71Co to 70Ni, consult Nuclear Data Sheets for A=70 (2016Gu11) or the ENSDF database for 70Ni. Combining all the available data, recommended values are provided for energies, spins and parities, and half-lives of levels, with energies, branching ratios and multipolarities of γ radiations, and characteristics of β and α radiations in radioactive decays. Excited-states have not yet been identified in 71Mn, 71Fe, and 71Kr, with the ground-state half-life remaining unknown only for 71Mn; data for excited states in 71Co and 71Ni are very limited; 71Ga, 71Ge and 71As are the most extensively studied nuclides via various reactions and decays, followed by 71Cu, 71Zn, 71Se, and 71Br, however, except for 71Ge, the decay schemes of all other nuclides are considered as incomplete due to a large gap between the decay Q-value and the highest observed level. This work supersedes earlier evaluations of A=71 by 2011Ab01.

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A=71等压线的核结构和衰变数据
对12种已知质量数为71的核素(Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, As, Se, Br, Kr)的实验核光谱数据进行了评估。每个反应和衰变实验都提供了详细的汇编和评估信息。72Co到71Ni的β - n衰变包括在本工作中,而71Co到70Ni的β - n衰变,请查阅核数据表A=70 (2016Gu11)或ENSDF数据库的70Ni。结合所有可用的数据,给出了放射性衰变中能级的能量、自旋和奇偶、半衰期、γ辐射的能量、分支比和多极化以及β和α辐射的特征的推荐值。71Mn、71Fe和71Kr的激发态尚未确定,只有71Mn的基态半衰期未知;71Co和71Ni的激发态数据非常有限;71Ga、71Ge和71As是通过各种反应和衰变研究最多的核素,其次是71Cu、71Zn、71Se和71Br,但除71Ge外,其他所有核素的衰变方案都被认为是不完整的,因为衰变q值与观测到的最高水平之间存在很大差距。这项工作取代了2011Ab01之前对A=71的评估。
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来源期刊
Nuclear Data Sheets
Nuclear Data Sheets 物理-物理:核物理
CiteScore
7.80
自引率
5.40%
发文量
22
审稿时长
>12 weeks
期刊介绍: The Nuclear Data Sheets are current and are published monthly. They are devoted to compilation and evaluations of experimental and theoretical results in Nuclear Physics. The journal is mostly produced from Evaluated Nuclear Structure Data File (ENSDF), a computer file maintained by the US National Nuclear Data Center
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