π介子放射性作为Nuclear Fission的新模式
Pionic Radioactivity as New Mode of Nuclear Fission
摘要：
本文对作为一种新核模式的π放射性的理论问题进行了简短的回顾。本文回顾了25年来核π介子放射性预测所取得的重要理论和实验结果。用类裂变模型表明，大多数SHE核位于π介子裂变参数达到极限值X=1的区域（见图2 -3）。因此，SHE-region的特征在于没有对自发π介子发射的经典势垒。因此，SHE核素的两种衰变模式，即π介子裂变和自发裂变，基本上只由壳效应决定。然后，可以看到，通常预测的双魔核周围的SHE稳定岛298-[114]，这是没有实验证实的，可以通过该区域的SHE核的主要π放射性来解释。双峰对称（见图1和图2）。图5ab）以及超巨星放射性晕（见图6）作为核π介子裂变的两个重要标志。
英文摘要：
In this paper a short review of the theoretical problems of the pionic radioactivity as a new nuclear mode is presented. The essential theoretical and experimental results obtained in the 25 years from the prediction of the nuclear pionic radioactivity are reviewed. Using the fission-like model it was shown that most of the SHE-nuclei lie in the region where the pionic fissility parameters attain their limiting value X=1 (see Fig.2-3). Hence, the SHE-region is characterized by the absence of a classical barrier toward spontaneous pion emission. Consequently, both decay modes, the pionic fission and the spontaneous fission of SHE nuclides, essentially will be determined only by shell effects. Then, it was seen that the usual predicted SHE-island of stability around the double magic nucleus 298-[114], which is not confirmed experimentally, can be explained by the dominant pionic radioactivity of the SHE-nuclei from this region. The bimodal symmetric (see Figs. 5ab) as well as, the supergiant radioactive halos (see Fig. 6) as two important signature of the nuclear pionic fission are evidentiated.
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