论文标题
$^{17} $ f+ $^{12} $ c Fusion反应及其对质子 - 哈洛系统融合的影响的实验研究
Experimental study of the $^{17}$F+ $^{12}$C fusion reaction and its implications for fusion of proton-halo systems
论文作者
论文摘要
较低的$ 1/2 $+首次激发型弱质质子滴核$^{17} $ f的光环性质长期以来一直被假设。这种晕核核的结构将暗示特殊的核特性，包括在屏障上方的融合横截面中增强。 $^{17} $ f + $^{12} $ c的总融合横截面是使用佛罗里达州立大学的新开发的“ Encore” Active-target检测器研究了库仑屏障附近的$^{12} $ c。还测量了稳定的对应物系统$^{16} $ o + $^{12} $ c和$^{19} $ f + $^{12} $ c的总融合横截面。与稳定的对应物系统相比，观察到$^{17} $ f $ 1/2 $ 1/2 $+首先激发态的光环性质的影响。
The halo nature of the low-lying $1/2$+ first excited state of the exotic weakly-bound proton drip-line nucleus $^{17}$F has long been hypothesized. The structure of such a halo nucleus would imply special nuclear properties including, possibly, an enhancement in its fusion cross section above the barrier. The total fusion cross section of $^{17}$F + $^{12}$C near the Coulomb barrier was studied using the newly developed "Encore" active-target detector at Florida State University. Total fusion cross sections for the stable counterpart systems $^{16}$O + $^{12}$C and $^{19}$F + $^{12}$C were also measured to enable a systematic comparison. No influence of the halo nature of the $^{17}$F $1/2$+ first excited state on its fusion excitation function was observed when compared with the stable counterpart systems.
