关键词: 
形状驱动效应 /
尼尔逊能级 /
跃迁电四极矩 /
约化跃迁概率 /
反常带交叉

摘要: 对双奇核¹⁷⁴Re的在束γ谱学实验数据作了仔细分析， 提取出了带间与带内E2 γ跃迁分支比， 并导出了其约化跃迁概率的比值。用带混合理论对约化跃迁概率的比值进行了分析， 得到带间相互作用强度及转动带形变的信息。发现不同组态的转动带其跃迁电四极矩具有明显的差异。与相邻奇A核的结构特征类似，这种跃迁电四极矩的差异很可能是由于1/2^-[541]准质子或1/2^-[521] 准中子对原子核的形状驱动效应造成的。 By analyzing carefully the inbeam γ spectroscopy data of odd-odd ¹⁷⁴Re, we have extracted the branching ratios of the interband and intraband E2 γ transitions from the two rotational bands of different configurations in ¹⁷⁴Re.The ratios of the reduced transition probabilities B(E2) have been deduced and analyzed using a band mixing theory. Information on the band interaction and deformation have been obtained. Apparent differences of transition quadrupole moments are found in the two configurations. A likely reason for the differences in the transition quadrupole moments is the shape driving effects of 1/2^-[541] quasiproton or 1/2^-[521] quasi neutron, which has been proposed in the oddA neighbors of ¹⁷⁴Re.