论文标题
$^{86} \ textrm {ge} $的三轴诱导诱导的单极quadrupole-hexadeCupole耦合
Triaxiality induced monopole-quadrupole-hexadecupole coupling in the isoscalar giant resonances for $^{86}\textrm{Ge}$
论文作者
论文摘要
基于$^{86} \ textrm {ge} $的等效巨型共振，由基于协变量密度功能理论的准粒子有限幅度方法研究。除了在轴向变形的核中拆分等视位巨型单极共振的众所周知的单极 - 四极耦合外，在三重型核^{86} \ forlofe forment forment forment中，均以峰值的触发均在轴向变形的核中识别出单极 - quadrupole-hexadecupole偶联。等轴单极强度函数。三轴性诱导的共振峰的过渡密度显示了单极，四极杆和六边形振动之间的强烈相互作用。共振的峰值响应对单子，四极和六核摄影的响应同时可以被视为$^{86} \ textrm {ge} $中三轴性的指纹。
The isoscalar giant resonances for $^{86}\textrm{Ge}$ are studied by the quasiparticle finite amplitude method based on the covariant density functional theory. In addition to the well-known monopole-quadrupole coupling that splits the isoscalar giant monopole resonance in axially deformed nuclei, a monopole-quadrupole-hexadecupole coupling is identified in the triaxially deformed nucleus $^{86}\textrm{Ge}$, leading to the emergence of a distinct resonance peak at the low energy side of the isoscalar monopole strength function. The transition density of the triaxiality induced resonance peak shows a strong interplay among monopole, quadrupole, and hexadecupole vibrations. The resonance peak responses to monopole, quadrupole, and hexadecupole perturbations simultaneously, which could be regarded as a fingerprint of the triaxiality in $^{86}\textrm{Ge}$.
