The universal fusion function prescription and the empirical coupled-channel (ECC) model are used to analyze the dynamic effects on fusion cross sections for reactions ${}^{32,34,36}\mathrm{S}+{}^{204,206,208}\mathrm{Pb}$. An examination of the reduced fusion functions shows that the total dynamic effects on fusion cross sections in ${}^{36}\mathrm{S}+{}^{204,206,208}\mathrm{Pb}$ are almost the same as those in ${}^{34}\mathrm{S}+{}^{204,206,208}\mathrm{Pb}$. Furthermore, at sub-barrier energies of the reactions ${}^{32,34,36}\mathrm{S}+{}^{208}\mathrm{Pb}$, the largest enhancement of reduced fusion function is observed in the reaction ${}^{32}\mathrm{S}+{}^{208}\mathrm{Pb}$. Then the enhancement of fusion cross sections due to couplings to inelastic excitation channels and neutron transfer channels with positive $Q$ values is investigated by using the ECC model. The results show that the experimental data of the reactions ${}^{34,36}\mathrm{S}+{}^{204,206,208}\mathrm{Pb}$ and ${}^{32}\mathrm{S}+{}^{208}\mathrm{Pb}$ are reproduced well by the ECC model. In addition, it can be found that the effect of coupling to positive $Q$-value neutron transfer channels is necessary to reproduce the sub-barrier fusion data of the reaction ${}^{32}\mathrm{S}+{}^{208}\mathrm{Pb}$. Furthermore, for the two reactions ${}^{32}\mathrm{S}+{}^{204}\mathrm{Pb}$ and ${}^{32}\mathrm{S}+{}^{206}\mathrm{Pb}$, the effects of coupling to positive $Q$-value neutron transfer channels are predicted to be significant. The fusion cross sections for these two reactions are also predicted.

中文翻译：

---

反应S32,34,36+Pb204,206,208对聚变截面动力学影响的理论研究

通用融合函数公式和经验耦合通道 (ECC) 模型用于分析反应对融合截面的动态影响 ${}^{32,34,36}\mathrm{秒}+{}^{204,206,208}铅$. 对简化融合函数的检查表明，在融合截面上的总动态影响${}^{36}\mathrm{秒}+{}^{204,206,208}铅$ 几乎和那些一样 ${}^{34}\mathrm{秒}+{}^{204,206,208}铅$. 此外，在反应的亚势垒能${}^{32,34,36}\mathrm{秒}+{}^{208}铅$, 在反应中观察到还原融合函数的最大增强 ${}^{32}\mathrm{秒}+{}^{208}铅$. 然后，由于耦合到非弹性激发通道和具有正电荷的中子转移通道，聚变截面的增强$问$值是通过使用 ECC 模型来研究的。结果表明，反应的实验数据${}^{34,36}\mathrm{秒}+{}^{204,206,208}铅$ 和 ${}^{32}\mathrm{秒}+{}^{208}铅$ECC 模型可以很好地再现。此外，可以发现耦合对正$问$-value 中子传输通道是重现反应的子势垒聚变数据所必需的 ${}^{32}\mathrm{秒}+{}^{208}铅$. 此外，对于这两个反应${}^{32}\mathrm{秒}+{}^{204}铅$ 和 ${}^{32}\mathrm{秒}+{}^{206}铅$, 耦合对正的影响 $问$-value 中子传输通道预计是显着的。还预测了这两个反应的融合截面。