{"title":"Investigation of high spin properties of \\(^{55}\\)Cr in deformed Hartree–Fock and angular momentum projection model","authors":"Nandita Kar, Zashmir Naik","doi":"10.1007/s12043-024-02739-w","DOIUrl":null,"url":null,"abstract":"<div><p>The rotational bands of <span>\\(^{55}\\)</span>Cr are studied with deformed Hartree–Fock (HF) and angular momentum projection techniques. Energy spectra are calculated up to high spin values <span>\\(J={37/2}^+\\)</span>. Configuration mixing is performed between different rotational aligned (RAL) bands and the band-mixed result is compared with the experimental bands. One-, three- and five-quasiparticle bands are studied here. Except these, we also predict some structural properties like magnetic dipole moment (<span>\\(\\mu \\)</span>), static quadrupole moment (<span>\\(Q_0\\)</span>) and spectroscopic quadrupole moment (<span>\\(Q_s\\)</span>) along with deformation parameter for future verification. We used our microscopic model to predict band structures in the high <i>K</i> region too. Reduced transition probabilities, i.e. <i>B</i>(<i>E</i>2) and <i>B</i>(<i>M</i>1) values are calculated for all bands. Signature effect has been observed in low <i>K</i> spectra as well as in reduced transition probabilities.</p></div>","PeriodicalId":743,"journal":{"name":"Pramana","volume":"98 3","pages":""},"PeriodicalIF":1.9000,"publicationDate":"2024-07-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Pramana","FirstCategoryId":"4","ListUrlMain":"https://link.springer.com/article/10.1007/s12043-024-02739-w","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The rotational bands of \(^{55}\)Cr are studied with deformed Hartree–Fock (HF) and angular momentum projection techniques. Energy spectra are calculated up to high spin values \(J={37/2}^+\). Configuration mixing is performed between different rotational aligned (RAL) bands and the band-mixed result is compared with the experimental bands. One-, three- and five-quasiparticle bands are studied here. Except these, we also predict some structural properties like magnetic dipole moment (\(\mu \)), static quadrupole moment (\(Q_0\)) and spectroscopic quadrupole moment (\(Q_s\)) along with deformation parameter for future verification. We used our microscopic model to predict band structures in the high K region too. Reduced transition probabilities, i.e. B(E2) and B(M1) values are calculated for all bands. Signature effect has been observed in low K spectra as well as in reduced transition probabilities.
利用变形哈特里-福克(HF)和角动量投影技术研究了(^{55}\)铬的旋转带。计算了高达高自旋值(J={37/2}^+\)的能谱。在不同的旋转排列(RAL)波段之间进行了构型混合,并将波段混合结果与实验波段进行了比较。这里研究了单、三和五准粒子带。除此以外,我们还预测了一些结构特性,如磁偶极矩(\(\mu \))、静态四极矩(\(Q_0\))和光谱四极矩(\(Q_s\))以及形变参数,以供将来验证。我们还利用我们的微观模型预测了高 K 区的能带结构。我们计算了所有波段的还原转变概率,即 B(E2) 和 B(M1) 值。在低 K 光谱和降低的转变概率中都观察到了特征效应。
期刊介绍:
Pramana - Journal of Physics is a monthly research journal in English published by the Indian Academy of Sciences in collaboration with Indian National Science Academy and Indian Physics Association. The journal publishes refereed papers covering current research in Physics, both original contributions - research papers, brief reports or rapid communications - and invited reviews. Pramana also publishes special issues devoted to advances in specific areas of Physics and proceedings of select high quality conferences.