Nuclear Data Sheets最新文献

Nuclear Structure and Decay Data for A=33 Isobars

IF 2.8 1区物理与天体物理

Nuclear Data Sheets Pub Date : 2025-02-01 DOI: 10.1016/j.nds.2025.01.001

Jun Chen , Balraj Singh

{"title":"Nuclear Structure and Decay Data for A=33 Isobars","authors":"Jun Chen , Balraj Singh","doi":"10.1016/j.nds.2025.01.001","DOIUrl":"10.1016/j.nds.2025.01.001","url":null,"abstract":"<div><div>Experimental structure and decay data are evaluated for eight known nuclides of mass number A=33 (Na, Mg, Al, Si, P, S, Cl, Ar). Experimental studies for the identification of other three nuclides: <sup>33</sup>F, <sup>33</sup>Ne and <sup>33</sup>K by 2019Ah07, 2007Ba71, and 1986La17, respectively, have not met with success, and values of S(2n) for <sup>33</sup>F, S(n) for <sup>33</sup>Ne and S(p) for <sup>33</sup>K from systematics (2021Wa16) and theoretical calculations (2019Mo01) suggest that these nuclei are likely unbound towards particle emission. Detailed evaluated level properties and related information are presented and recommended spectroscopic parameters are provided, combining all the data from various reactions and decays. Information for excited states in <sup>33</sup>Na is limited and the spin of <sup>33</sup>Al g.s. still has not been determined unambiguously. The radioactive decay schemes of <sup>33</sup>Na, <sup>33</sup>Mg, <sup>33</sup>Al and <sup>33</sup>Si remain incomplete. The <sup>33</sup>S nuclide is the most extensively studied from many different reactions and decays, followed by <sup>33</sup>Cl and <sup>33</sup>P. This work supersedes earlier full evaluations of A=33 published by 2011Ch49, 1990En08 (also 1998En04 update) and 1978En02.</div></div>","PeriodicalId":49735,"journal":{"name":"Nuclear Data Sheets","volume":"199 ","pages":"Pages 1-270"},"PeriodicalIF":2.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143143982","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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General Policies

IF 2.8 1区物理与天体物理

Nuclear Data Sheets Pub Date : 2025-02-01 DOI: 10.1016/j.nds.2025.01.003

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Nuclear Data Sheets for A=81

IF 2.8 1区物理与天体物理

Nuclear Data Sheets Pub Date : 2025-02-01 DOI: 10.1016/j.nds.2025.01.002

M. Shamsuzzoha Basunia

{"title":"Nuclear Data Sheets for A=81","authors":"M. Shamsuzzoha Basunia","doi":"10.1016/j.nds.2025.01.002","DOIUrl":"10.1016/j.nds.2025.01.002","url":null,"abstract":"<div><div>Nuclear structure data pertaining to all nuclei with mass number A=81 (Ni, Cu, Zn, Ga, Ge, As, Se, Br, Kr, Rb, Sr, Y, Zr, Nb, Mo) have been compiled and evaluated and incorporated into the ENSDF data file. This evaluation for A=81 supersedes the previous one, 2008Ba34.</div><div>Highlights of this evaluation are the following:</div><div>From fragmentation reaction studies of <sup>238</sup>U beam at 345 MeV/nucleon on a Be target, one count has been assigned to <sup>81</sup>Ni in 2017Su15, which is assumed to correspond to the g.s. activity of <sup>81</sup>Ni and the Adopted Levels dataset has been proposed.</div><div>The absolute I<em>γ</em> determined in 1982De36 (<sup>81</sup>Y <em>ε</em> decay (70.4 s)) from total I<em>γ</em>/total <em>β</em><sup>+</sup> recoils implies a 97% g.s. branch (from (5/2<sup>+</sup>) to 1/2<sup>−</sup>) in the <sup>81</sup>Y <em>ε</em> decay, which is discrepant compared to the g.s. feeding of <2.6 in this evaluation. The absolute I<em>γ</em> of 1982De36 was not considered in the previous evaluation (2008Ba34), same in this one as well. The reason for this major discrepancy is not understood. The decay scheme normalization is consequently tentative.</div><div><sup>81</sup>Zr g.s. half-life measurements have been reported from (113, 175, and 230<em>γ</em>(t)) and decay curves for <em>β</em> events correlated with <sup>81</sup>Zr implantations. No additional data are available. A <sup>81</sup>Zr <em>ε</em> decay (5.3 s) dataset has been created based on the data from the Adopted Levels, Gammas of <sup>81</sup>Y.</div></div>","PeriodicalId":49735,"journal":{"name":"Nuclear Data Sheets","volume":"199 ","pages":"Pages 271-612"},"PeriodicalIF":2.8,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143143983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Nuclear Data Sheets Symbols and Abbreviations

IF 2.8 1区物理与天体物理

Nuclear Data Sheets Pub Date : 2025-02-01 DOI: 10.1016/S0090-3752(25)00008-0

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Nuclear Data Sheets Symbols and Abbreviations 核数据表符号和缩写

IF 2.8 1区物理与天体物理

Nuclear Data Sheets Pub Date : 2024-12-01 DOI: 10.1016/S0090-3752(24)00068-1

引用次数: 0

Energy Levels of Light Nuclei A=13 轻核的能级A=13

IF 2.8 1区物理与天体物理

Nuclear Data Sheets Pub Date : 2024-12-01 DOI: 10.1016/j.nds.2024.11.001