论文标题

质子 - 哈洛核融合反应中的屏蔽作用

Shielding effects in fusion reactions of proton-halo nucleus

论文作者

He, Xue-ying, Dong, Qin, Ou, Li

论文摘要

为了解释实验事实,即质子 - 荷兰核在重靶核上的融合横截面并未如预期的那样增强,因此提出了屏蔽假设。也就是说,质子 - 半核核是偏振的,价质子被芯屏蔽。在本文中,在改进的量子分子动力学模型的框架内,已经模拟了$^{17} $ f的融合反应在$^{208} $ pb上围绕库仑屏障周围的融合反应。通过微观动力学分析验证了屏蔽效应的存在,还研究了其对有效相互作用潜力的影响。

To explain the experimental facts that the fusion cross sections of proton-halo nucleus on heavy target nucleus is not enhanced as expected, the shielding supposition has been proposed. Namely, the proton-halo nucleus is polarized with the valence proton being shielded by the core. In this paper, within the frame of the Improved Quantum Molecular Dynamics model, the fusion reactions by $^{17}$F on $^{208}$Pb around Coulomb barrier have been simulated. The existence of shielding effect is verified by microscopic dynamics analysis and its influence on the effective interaction potential is also investigated.

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