论文标题
131BA中多手性双线运动的伪源性对称性和八极相关性
Pseudospin symmetry and octupole correlations for multiple chiral doublets in 131Ba
论文作者
论文摘要
A reflection-asymmetric triaxial particle rotor model with three quasiparticles and a reflection-asymmetric triaxial rotor is developed, and applied to investigate the observed multiple chiral doublets (M\c{hi}D) candidates with octupole correlations in 131Ba, i.e., two pairs of positive-parity bands D3-D4 and D5-D6, as well as one pair of负值带D7-D8。能量光谱，能量分流参数，B（M1）/B（E2）比和B（E1）/B（E2）比率得到很好的再现。这些m \ c {hi} d候选者的手性几何形状由方位角检查，并清楚地证明了手性几何形状的演变。分析了正学带的固有结构，并建议使用伪胞手列四重奏条带。
A reflection-asymmetric triaxial particle rotor model with three quasiparticles and a reflection-asymmetric triaxial rotor is developed, and applied to investigate the observed multiple chiral doublets (M\c{hi}D) candidates with octupole correlations in 131Ba, i.e., two pairs of positive-parity bands D3-D4 and D5-D6, as well as one pair of negative-parity bands D7-D8. The energy spectra, the energy staggering parameters, the B(M1)/B(E2) ratios, and the B(E1)/B(E2) ratios are reproduced well. The chiral geometries for these M\c{hi}D candidates are examined by the azimuthal plots, and the evolution of chiral geometry with spin is clearly demonstrated. The intrinsic structure for the positive-parity bands is analyzed and the possible pseudospin-chiral quartet bands are suggested.
