论文标题
质子和中子交换是在近级烈性能量下融合的前奏
Proton and neutron exchange as a prelude to fusion at near-barrier energies
论文作者
论文摘要
$^{39,41,41,45,47} $ k + $^{28} $ si和$^{36,44} $ AR + $ a + $^{28} $ SI的系统检查，可洞悉中子和Proton对Nuclei对N = 20和N = 28壳的融合的影响。降低的激发功能的比较揭示了开壳和封闭壳系统的行为之间的明显差异。虽然耦合通道的计算为封闭壳核提供了很好的描述，但它们对开放壳核的融合横截面的预测显着不足。在势能表面的背景下，对观察到的趋势进行了检查，包括壳效应和多核子交换，并考虑了Pauli-Blocking。
Systematic examination of fusion for $^{39,41,45,47}$K + $^{28}$Si and $^{36,44}$Ar + $^{28}$Si provides insight into the impact of neutron and proton exchange on fusion for nuclei at and near the N=20 and N=28 shells. Comparison of the reduced excitation functions reveals a marked difference between the behavior of open-shell and closed-shell systems. While coupled channels calculations provide a good description for the closed-shell nuclei they significantly under-predict the fusion cross-section for open-shell nuclei. The observed trends are examined in the context of a potential energy surface, including shell effects, and multi-nucleon exchange with consideration of Pauli-blocking.
