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在A≈ 80区奇 -奇核旋称反转问题上已提出几种机制 ,但没有一种理论推断是结论性的 .在本工作中将角动量投影壳模型应用到 80 ,82 Rb核 ,对组态为πg9 2 νg9 2 的正宇称晕带和组态为π(p1 2 ,p3 2 ,f5 2 ) νg9 2 的负宇称晕带理论计算和实验结果进行了比较 ,特别是对正宇称晕带中的signature反转机制进行了探讨 .角动量投影壳模型计算显示正宇称晕带中的signature反转是原子核随自旋增加形状发生变化的信号 ,其间原子核从低自旋的长椭球变到高自旋的扁椭球 .此外 ,还确定了此两带的原子核形状
Several mechanisms have been proposed on the odd-odd nuclear gyration inversion problem in the A≈80 region, but none of the theoretical inferences are conclusive. In this work, the angular momentum projection shell model was applied to the 80,82 Rb core, The positive parity halo with πg9 2 νg9 2 and the negative-parity halo with π (p1 2, p3 2, f5 2) νg9 2 are calculated and compared with experimental results, especially for positive The signature reversal mechanism in the parity halo is discussed.The angular momentum projection shell model calculations show that the signature inversion in the positive parity halo is a signal that the nuclei change shape as the spin increases while the nuclei change from low spin The ellipsoid changes to a highly spheroid ellipsoid. In addition, the shape of the nuclei of these two bands is also determined