论文标题
在84^rb中可能的磁旋转带
Possible Magnetic Rotational Bands in 84^Rb
论文作者
论文摘要
通过使用70zn（18o，p3n）84RB反应以75 MeV的束能来研究84RB中的高旋转状态。建立了三个高上层的负值频段，它们的水平间距非常规律，即没有标志性分裂。这三个频段的跃迁的偶极特征是由定向状态（DCO）强度比的γ-伽马定向相关性分配的，而多极性M1的建议是通过类比，在相邻核中具有多粒子激发。观察到强的M1和弱或没有E2转变。所有这些特征特征表明它们是磁旋转带。
High-spin states in 84Rb are studied by using the 70Zn(18O, p3n)84Rb reaction at a beam energy of 75 MeV. Three high-lying negative-parity bands are established, whose level spacings are very regular, i.e., there is no signature splitting. The dipole character of the transitions of these three bands is assigned by the gamma-gamma directional correlations of oriented states (DCO) intensity ratios and the multipolarity M1 is suggested by analogy with multiparticle excitations in neighboring nuclei. Strong M1 and weak or no E2 transitions are observed. All these characteristic features show they are magnetic rotational bands.
