{"title":"N = 28 isotones: Shape coexistence towards proton-deficient side","authors":"G. Saxena , M. Kaushik","doi":"10.1016/j.spjpm.2017.10.002","DOIUrl":null,"url":null,"abstract":"<div><p>We have employed RMF+BCS (relativistic mean-field and Bardeen-Cooper-Schrieffer) approach to study the phenomenon of shape coexistence in <em>N</em> = 28 isotones towards the proton-deficient side. Our present investigations include single particle energies, deformations, binding energies as well as excitation energies. It is found that towards the proton-deficient side, <em>N</em> = 28 shell closure disappears due to reduced gap between neutron 1f<sub>7/2</sub> and 1f<sub>5/2</sub> and the nuclei <sup>40</sup>Mg, <sup>42</sup>Si, and <sup>44</sup>S are found to possess shape coexistence giving further support to weakening of the shell gap. These results are found in excellent match with other theoretical and experimental studies and are fortified with a variety of calculations and parameters.</p></div>","PeriodicalId":41808,"journal":{"name":"St Petersburg Polytechnic University Journal-Physics and Mathematics","volume":null,"pages":null},"PeriodicalIF":0.2000,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.spjpm.2017.10.002","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"St Petersburg Polytechnic University Journal-Physics and Mathematics","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S240572231630127X","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 1
Abstract
We have employed RMF+BCS (relativistic mean-field and Bardeen-Cooper-Schrieffer) approach to study the phenomenon of shape coexistence in N = 28 isotones towards the proton-deficient side. Our present investigations include single particle energies, deformations, binding energies as well as excitation energies. It is found that towards the proton-deficient side, N = 28 shell closure disappears due to reduced gap between neutron 1f7/2 and 1f5/2 and the nuclei 40Mg, 42Si, and 44S are found to possess shape coexistence giving further support to weakening of the shell gap. These results are found in excellent match with other theoretical and experimental studies and are fortified with a variety of calculations and parameters.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
