Nuclear Structure and Decay Data for A=165 Isobars

IF 2.8 1区物理与天体物理 Q2 PHYSICS, NUCLEAR

Nuclear Data Sheets Pub Date : 2024-03-06 DOI:10.1016/j.nds.2024.02.003

Balraj Singh , Jun Chen

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引用次数: 0

Abstract

Experimental nuclear spectroscopic data are compiled and evaluated for 18 known nuclides of mass 165 (Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Hf, Ta, W, Re, Os, Ir, Pt). Detailed 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. ¹⁶⁵Dy, ¹⁶⁵Ho, ¹⁶⁵Er, ¹⁶⁵Tm, ¹⁶⁵Yb, ¹⁶⁵Lu and ¹⁶⁵Hf are among the most extensively studied nuclides via decay and high-spin gamma-ray spectroscopy measurements, followed by limited data for ¹⁶⁵Tb, ¹⁶⁵Ta, ¹⁶⁵W, ¹⁶⁵Re, and ¹⁶⁵Os. No excited states have yet been identified in ¹⁶⁵Sm, ¹⁶⁵Gd, and ¹⁶⁵Pt, while for ¹⁶⁵Eu and ¹⁶⁵Ir, information is available for only the g.s. and an isomer, but with no γ rays. This work supersedes earlier evaluation of A=165 nuclides by 2006Ja09.

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A=165 等离子体的核结构和衰变数据

汇编并评估了 18 种质量为 165（Pm、Sm、Eu、Gd、Tb、Dy、Ho、Er、Tm、Yb、Lu、Hf、Ta、W、Re、Os、Ir、Pt）的已知核素的核光谱实验数据。每个反应和衰变实验都有详细的信息。综合所有可用数据，提供了能量、自旋和奇偶性、水平半衰期的建议值，以及 γ 辐射的能量、分支比和多极性，以及放射性衰变中 β 和 α 辐射的特征。通过衰变和高自旋伽马射线光谱测量，165Dy、165Ho、165Er、165Tm、165Yb、165Lu 和 165Hf 是研究最广泛的核素，其次是 165Tb、165Ta、165W、165Re 和 165Os。165Sm、165Gd 和 165Pt 尚未发现激发态，而 165Eu 和 165Ir 仅有 g.s. 和一种异构体的信息，但没有 γ 射线。这项工作取代了早先在2006Ja09年对A=165 核素的评估。

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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