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arXiv 0812.5086nucl-th
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超重核中的团簇放射性:一个新的观点

Cluster radioactivity in very heavy nuclei: a new perspective

T. R. Routray, Jagajjaya Nayak, D. N. Basu

摘要:

利用折叠密度相关的M3 Y有效相互作用得到的微观核势与集团和子核的密度,研究了超重核的奇异集团衰变.利用微观核势、库仑相互作用和自旋-宇称守恒产生的离心势垒,得到了团簇与子核之间的相互作用势。在WKB框架中计算半衰期值,并提取预形成因子。后者的值被认为只有一个非常弱的依赖于发射集群的质量。

英文摘要:

Exotic cluster decay of very heavy nuclei is studied using the microscopic nuclear potentials obtained by folding density dependent M3Y effective interaction with the densities of the cluster and the daughter nuclei. The microscopic nuclear potential, Coulomb interaction and the centrifugal barrier arising out of spin-parity conservation are used to obtain the potential between the cluster and the daughter nuclei. Half life values are calculated in the WKB framework and the preformation factors are extracted. The latter values are seen to have only a very weak dependence on the mass of the emitted cluster.

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