Experimental near-barrier fusion cross sections for ${}^{17}\mathrm{F}+{}^{12}\mathrm{C}$ are compared to the fusion excitation functions for ${}^{16,17,18}\mathrm{O}, {}^{19}\mathrm{F}$, and ${}^{20}\mathrm{Ne}$ ions on a carbon target. Normalized or reduced fusion cross sections are utilized in order to compare the different systems and account for the differing static size of the incident ions as well as changes in fusion barrier. Fusion excitation functions for the case of the mirror nuclei ${}^{17}\mathrm{F}$ and ${}^{17}\mathrm{O}$ with a single $\mathit{sd}$ nucleon are compared. The ${}^{17}\mathrm{F}$ data are also juxtaposed with nuclei involving multiple $\mathit{sd}$ nucleons. Trends of the fusion cross section above the barrier beyond the expected systematic behavior are observed. These trends are interpreted as the interplay of the $\mathit{sd}$ protons and neutrons. The experimental data are also compared to a widely used analytic model of near-barrier fusion, a time-dependent Hartree-Fock model, and coupled channels calculations.

中文翻译：

---

评估价中子和质子对聚变的影响

实验近势垒融合截面 ${}^{17}\mathrm{F}+{}^{12}\mathrm{C}$ 与融合激励函数进行比较 ${}^{16,17,18}\mathrm{哦}, {}^{19}\mathrm{F}$， 和 ${}^{20}\mathrm{ne}$碳靶上的离子。使用归一化或缩小的融合截面来比较不同的系统并说明入射离子的不同静态尺寸以及融合势垒的变化。镜核情况下的聚变激发函数${}^{17}\mathrm{F}$ 和 ${}^{17}\mathrm{哦}$ 用一个 $\mathit{标准差}$核子进行比较。这${}^{17}\mathrm{F}$ 数据还与涉及多个核的核并列 $\mathit{标准差}$核子。观察到超出预期系统行为的屏障上方融合截面的趋势。这些趋势被解释为$\mathit{标准差}$质子和中子。实验数据还与广泛使用的近势垒融合分析模型、时间相关的 Hartree-Fock 模型和耦合通道计算进行了比较。