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摘要
The alpha-preformation probability is directly deduced from experimental alpha decay energies and half-lives in an analytical way without any modified parameters. Several other model-deduced results, are used to compare with that of the present study. The key role played by the shell effects in the alpha-preformation process is indicated in all these cases. In detail, the alpha-preformation factors of different theoretical extractions are found to have similar behavior for one given isotopic chain, implying the model-independent varying trend of the preformation probability of alpha particle. In addition, the formation probability of heavier particle in cluster radioactivity is also obtained, and this confirms the relationship between the cluster preformation factor and the product of the cluster and daughter proton numbers.
- 出版日期2013-8
- 单位中国科学院理论物理研究所; 南京大学
