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近年来,奇-奇核高自旋核谱学,特别是奇-奇核低自旋区旋称能量劈裂异常(通常称为旋称反转(signature inversion))已成为高自旋态研究的热门课题之一。在正常情况下,优惠(favored)旋称能态低于非优惠(unfavored)旋称能态。实验发现,稀土奇-奇核晕带和半退耦带低自旋区普遍存在旋称反转现象,即非优惠旋称能态低于优惠称能态的反常劈裂。对这种反常现象有各种理论解释,目前仍无定论。系统总结该领域的实验现象,揭示其系统性规
In recent years, odd-odd nuclear high-spin nuclear spectroscopy, especially odd-odd nucleus low-spin region spin-called energy splitting anomaly (often referred to as signature inversion) has become a hot topic in high spin states one. Under normal circumstances, favored pronunciations are lower than unfavored ones. Experiments show that rare earth odd-odd nuclear halo zone and semi-decoupled low spin zone generally exist the phenomenon of the whirlpool reversal, that is, the non-preferential rotational symmetry is lower than the preferential energy state of the anomalous splitting. There are various theoretical explanations for this anomaly and it is still inconclusive. The system summarizes the experimental phenomena in this field and reveals its systematic rules