利用重离子熔合蒸发反应和在束γ谱学方法进行122, 124, 126Cs和132Cs高自旋态的研究。根据γ-γ符合关系和γ射线相对强度，建立这些双奇核的手征双重带。采用多普勒移动衰减法和多普勒反冲距离法测量双重带的能级寿命，提取相应的绝对电磁跃迁几率。通过比较转晕带和伴带的B(E2)和B(M1)实验值，直接得到价质子和价中子均为粒子性的122, 124, 126Cs手征对称性的关键判据，实现对一粒子和一空穴耦合于三轴转子的经典手征模型的严格检验。通过对Cs同位素的电磁性质的系统学分析，探讨手征对称性随中子数变化的规律，深入了解手征双重带的形成机制。

The high spin states in 122,124,126Cs and 132Cs are studied by in-beam γ-ray spectroscopy using the heavy-ion fusion-evaporation reactions. The chiral bands in these doubly-odd nuclei are identified on the basis of the γ-γ coincidence relationships and the γ-ray relative intensities. The level lifetimes in the chiral bands are measured by the Doppler-shift attenuation method and the Recoil distance doppler-shift method, the absolute electromagnetic transition probabilities are extracted. Conclusive judgment of chiral symmetry for the 122,124,126Cs nuclei, of which both the valence protons and the valence neutrons are characteristic of particle, is directly obtained by comparing the experimental values of B(M1) and B(E2) between the yrast and the partner bands. A stringent test for the classic chiral model, which is based on coupling of one particle and one hole to a triaxial rotor, is performed. The chiral symmetry is investigated as a function of neutron number through systematic analysis of electromagnetic properties for the Cs isotopes so as to study further the formation mechanism of the chiral bands.