The symmetry and mixed-symmetry states of \(^{144{-}154}\)Nd isotopes are studied via the framework of the proton–neutron interacting boson model. The F-spin values of theoretical energy states are also investigated. The calculated electromagnetic transition probabilities B(E2), B(M1) and the mixing ratio \(\delta (E2/M1)\) are compared with available experimental data. The results obtained show that the \(2^+_3\) and \(2^+_4\) states have an \(F=F_{\max }-1\) value in the \(^{144}\)Nd and \(^{146,148}\)Nd isotopes, respectively. In the \(^{150{-}154}\)Nd isotopes, the \(1^+_{1}\) state is the lowest mixed-symmetry state.

通过质子-中子相互作用玻色子模型的框架研究了\(^{144{-}154}\) Nd同位素的对称和混合对称状态。还研究了理论能态的 F-自旋值。计算出的电磁跃迁概率B ( E 2)、B ( M 1) 和混合比\(\delta (E2/M1)\)与可用的实验数据进行了比较。得到的结果表明\(2^+_3\)和\(2^+_4\)状态在\(^{144}\)中有一个\(F=F_{\max }-1\)值分别是 Nd 和\(^{146,148}\) Nd 同位素。在里面\(^{150{-}154}\) Nd 同位素，\(1^+_{1}\)状态是最低的混合对称状态。