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arXiv 1003.3427nucl-thnucl-ex
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激发态复合核的带电粒子发射

Emission of charged particles from excited compound nuclei

Sh. A. Kalandarov

摘要:

在双核系统(DNS)模型下研究了激发态复合核(CN)的形成及其统计衰变,初始DNS在入射通道中形成,然后DNS在质量不对称坐标系中演化形成热CN.在DNS模型中,利用相互作用势的双重折叠方法计算了复杂碎片的发射势垒。结果表明,当激发态CN的中子数越少时,复杂碎片发射的截面越大。该方法也为计算新的缺中子同位素产生截面提供了可能,并可用于描述重系统的热裂变,通过计算结果与实验数据的比较,验证了模型的正确性

英文摘要:

The formation of excited compound nucleus (CN) and its statistical decay is investigated within the dinuclear system (DNS) model.The initial DNS is formed in the entrance channel when the projectile is captured by a target, and then the evolution of DNS in mass asymmetry coordinate leads to formation of the hot CN. The emission barriers for complex fragments were calculated within the DNS model by using the double folding procedure for the interaction potential. It is shown that cross sections for complex fragment emission become larger when excited CN is more neutron deficient. This approach gives also an opportunity to calculate the new neutron deficient isotopes production cross sections and can be applied to describe the hot fission of heavy systems.The model was tested by comparison of calculated results with experimental data

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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