Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Institute of Space Sciences, Shandong University, Weihai 264209, People's Republic of China.
iThemba LABS, 7129 Somerset West, South Africa.
Phys Rev Lett. 2016 Mar 18;116(11):112501. doi: 10.1103/PhysRevLett.116.112501. Epub 2016 Mar 14.
Two pairs of positive-and negative-parity doublet bands together with eight strong electric dipole transitions linking their yrast positive- and negative-parity bands have been identified in ^{78}Br. They are interpreted as multiple chiral doublet bands with octupole correlations, which is supported by the microscopic multidimensionally-constrained covariant density functional theory and triaxial particle rotor model calculations. This observation reports the first example of chiral geometry in octupole soft nuclei.
在 ^{78}Br 中已鉴定出两对正负宇称偶极子带以及 8 个连接其快自旋正、负宇称带的强电偶极跃迁。它们被解释为具有八极关联的多重手征偶极子带，这得到了微观多维约束协变密度泛函理论和三轴粒子转子模型计算的支持。这一观察结果报告了八极软核中手征几何形状的第一个例子。
