Nuclear Structure and Decay Data for A=31 Isobars

IF 2.8 1区物理与天体物理 Q2 PHYSICS, NUCLEAR

Nuclear Data Sheets Pub Date : 2022-09-01 DOI:10.1016/j.nds.2022.08.002

Jun Chen , Balraj Singh

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Abstract

Experimental nuclear spectroscopic data are evaluated for 11 known nuclides of mass 31 (F, Ne, Na, Mg, Al, Si, P, S, Cl, Ar, K). Detailed evaluated information is presented for each reaction and decay experiment. 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. ³¹P is the most extensively studied one among all nuclides via various reactions and decays, followed by ³¹S, ³¹Si, ³¹Mg and ³¹Al. Information for excited states in ³¹Ne, ³¹Na, ³¹Cl, ³¹Ar and ³¹K are limited; no excited states have yet been identified in ³¹F, even its ground-state half-life is unknown. Significant new data have become available for the structure of ³¹S, with its relevance to astrophysical applications. This work supersedes the earlier evaluation of A=31 by 2013Ou01, with literature cutoff date of Feb 15, 2013.

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A=31等压线的核结构和衰变数据

对11种已知质量为31的核素(F, Ne, Na, Mg, Al, Si, P, S, Cl, Ar, K)的实验核光谱数据进行了评估。对每个反应和衰变实验给出了详细的评估信息。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。在所有核素中，通过各种反应和衰变被研究最多的是31P，其次是31S、31Si、31Mg和31Al。31Ne、31Na、31Cl、31Ar和31K的激发态信息有限;31F还没有发现激发态，甚至它的基态半衰期也是未知的。对于31S的结构及其与天体物理应用的相关性，已经有了重要的新数据。本工作于2013年1月取代了先前对A=31的评价，文献截止日期为2013年2月15日。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Nuclear Data Sheets 物理-物理：核物理

CiteScore

7.80

自引率

5.40%

发文量

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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