论文标题
对冷融合反应中化合物核形成的微观研究
Microscopic study of the compound nucleus formation in cold-fusion reactions
论文作者
论文摘要
对融合概率的理解对于揭示产生超重元素的机制至关重要。我们通过结合时间依赖性密度功能理论，耦合通道方法和动力扩散模型来介绍化合物核形成的微观研究。 The fusion probability and compound nucleus formation cross sections for cold-fusion reactions $^{48}$Ca+$^{208}$Pb, $^{50}$Ti+$^{208}$Pb, and $^{54}$Cr+$^{208}$Pb are investigated and it is found that the deduced capture barriers, capture cross sections for these reactions are与实验数据一致。在捕获屏障的上方，我们的计算很好地重现了所测量的融合概率。我们的研究表明，微观动态理论的限制提高了耦合通道和扩散计算的预测能力。
The understanding of the fusion probability is of particular importance to reveal the mechanism of producing superheavy elements. We present a microscopic study of the compound nucleus formation by combining time-dependent density functional theory, coupled-channels approach, and dynamical diffusion models. The fusion probability and compound nucleus formation cross sections for cold-fusion reactions $^{48}$Ca+$^{208}$Pb, $^{50}$Ti+$^{208}$Pb, and $^{54}$Cr+$^{208}$Pb are investigated and it is found that the deduced capture barriers, capture cross sections for these reactions are consistent with experimental data. Above the capture barrier, our calculations reproduce the measured fusion probability reasonably well. Our studies demonstrate that the restrictions from the microscopic dynamic theory improve the predictive power of the coupled-channels and diffusion calculations.
