Level lifetimes for the candidate chiral doublet bands of ⁸⁰Br were extracted by means of the Doppler-shift attenuation method. The absolute transition probabilities derived from the lifetimes agree well with the M1 and E2 chiral electromagnetic selection rules, and are well reproduced by the triaxial particle rotor model calculations. Such good agreements among the experimental data, selection rules of chiral doublet bands and theoretical calculations are rare and outstanding in researches of nuclear chirality. Besides odd-odd Cs isotopes, odd-odd Br isotopes in the A≈ 80 mass region represent another territory that exhibits the ideal selection rules expected for chiral doublet bands.

通过多普勒频移衰减方法提取了⁸⁰ Br候选手性双峰带的能级寿命。从寿命导出的绝对跃迁概率与M 1 和E 2 手性电磁选择规则非常吻合，并且可以通过三轴粒子转子模型计算得到很好的再现。如此好的实验数据、手性双峰带选择规则和理论计算之间的一致性，在核手性研究中是少有的。除了奇奇 Cs 同位素外，A ≈ 80 质量区域中的奇奇 Br 同位素代表了另一个领域，该领域表现出预期的手性双峰的理想选择规则。