论文标题
$^{203} $ po激发态的单个粒子配置
Single Particle Configurations of the Excited States of $^{203}$Po
论文作者
论文摘要
$^{203} $ po（$ z = 84，n = 119 $）的激动状态在通过$^{194} $ pt（$^{13} $ c，4n）Fusion-eveporation在E $ _ {beam} $ = 74 mev的融合反应中进行了调查$γ$ -rays。 $γ$ -Ray光谱的标准技术已用于建立核的水平结构。通过$γ-γ$的重合测量结果，已经确定了二十个新的$γ$ - 射线过渡，并且在观察到的$γ$ rays的角度相关性和线性极化测量之后，已经确定或确定了几种状态的自旋 - 差分配。激发态已在大型基壳模型计算的框架中被解释，同时比较了其计算出的实验能量。它们主要归因于$ h_ {9/2} $和$ i_ {13/2} $ orbitals $ z = 82 $封闭和中子占用$ f_ {5/2} $，$ p_ {3/2} $和$ i_ {13/2} $ n = 126 $ n = 126 $ n = 126 $ n = 126。
Excited states of the $^{203}$Po ($Z = 84, N = 119$) have been investigated after populating them through $^{194}$Pt($^{13}$C,4n) fusion-evaporation reaction at E$_{beam}$ = 74 MeV and using a large array of Compton suppressed HPGe clover detectors as the detection setup for the emitted $γ$-rays. Standard techniques of $γ$-ray spectroscopy have been applied towards establishing the level structure of the nucleus. Twenty new $γ$-ray transitions have been identified therein, through $γ-γ$ coincidence measurements, and spin-parity assignments of several states have been determined or confirmed, following the angular correlation and linear polarization measurements on the observed $γ$-rays. The excited states have been interpreted in the framework of large basis shell model calculations, while comparing their calculated and experimental energies. They have been principally ascribed to proton population in the $h_{9/2}$ and $i_{13/2}$ orbitals outside the $Z = 82$ closure and neutron occupation of the $f_{5/2}$, $p_{3/2}$ and $i_{13/2}$ orbitals in the $N = 126$ shell.
