刚性三轴形具有SU(3)对称性：以¹⁶⁶Er为例
Rigid triaxiality has the SU(3) symmetry: $^{166}$Er as an example
AI总结：
本文基于SU(3)-IBM框架系统研究¹⁶⁶Er低能集体带的三轴形，通过包含更高阶SU(3)相互作用描述各种四极变形，证实其三轴形而非橄榄形。
摘要：
在低能集体带中，¹⁶⁶Er的三轴形通过SU(3)-IBM框架系统探讨。该框架包含SU(3)高阶相互作用，可描述各种四极变形。¹⁶⁶Er的三轴形通过三轴角γ=9.7°描述。计算的能谱、B(E2)跃迁强度和四极矩与实验数据高度一致。这些结果进一步支持¹⁶⁶Er的SU(3)三轴解释，并确认其三轴变形而非橄榄形。
英文摘要：
The emergence of triaxiality in the low-lying collective bands of $^{166}$Er is systematically explored within the SU3-IBM. In this framework, SU(3) higher-order interactions are included, which enable the descriptions of various quadrupole deformations. The triaxiality of $^{166}$Er is described with a triaxiality angle $γ=9.7^{\circ}$. In addition, the calculated energy spectra, $B(E2)$ transition strengths, and quadrupole moments show excellent agreement with experimental data. These results provide further evidence supporting the SU(3) triaxial interpretation of $^{166}$Er and confirm its triaxial deformation rather than the prolate shape.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
