论文标题
核与中子和质子滴管附近极端同胞的核快速旋转
Fast rotation of nuclei with extreme isospin in the vicinity of neutron and proton drip lines
论文作者
论文摘要
提出了对非常富含中子的核中集体旋转的当前理解的分析。结果表明，集体旋转可以随着自旋的增加而导致旋转状态的稳定性提高。非常富含质子的核中旋转激发的详细研究证实了这一结论，并表明对此类特征的实验研究在质子滴注线附近的核中更可行。他们还表明，通过核系统的集体旋转，可以将质子准结合或低旋转的质子固定的旋转带转化为质子结合的旋转带。这是由于强烈的科里奥利相互作用引起的，该相互作用作用于高$ J $或强烈混合的M轨道，并将占据的能量最高的单粒子状态驱动到负能量域中。这些物理机制导致核景观的大幅扩展，超出了旋转零质子滴注线。另外，出现了旋转核中巨型质子晕圈形成的新现象：它是由占用强大混合的M入侵轨道触发的。
The analysis of the present understanding of collective rotation in very neutron-rich nuclei is presented. It is shown that collective rotation can lead to the increase of stability of rotational states with increasing spin. The detailed investigation of rotational excitations in very proton-rich nuclei confirms this conclusion and indicate that experimental studies of such features are more feasible in the nuclei near proton drip line. They also show that rotational bands which are proton quasi-bound at zero or low spins can be transformed into proton bound ones at high spin by collective rotation of nuclear systems. This is due to strong Coriolis interaction which acts on high-$j$ or strongly mixed M orbitals and drives the highest in energy occupied single-particle states into negative energy domain. These physical mechanisms lead to a substantial extension of the nuclear landscape beyond the spin zero proton drip line. In addition, a new phenomenon of the formation of giant proton halos in rotating nuclei emerges: it is triggered by the occupation of strongly mixed M intruder orbitals.
