论文标题
$^{11} \ text {b}（p，3α）γ$反应$ e_p = 0.5-2.7 $ meV的实验研究
Experimental study of the $^{11}\text{B}(p,3α)γ$ reaction at $E_p = 0.5-2.7$ MeV
论文作者
论文摘要
我们对$^{12} $ c中低洼共振结构的理解仍然不完整。我们已经使用了$^{11} \ text {b}（p，3α）γ$在Proton Energies的$ e_p = 0.5-2.7 $ MEV处的反应，作为对$^{12} $ c的$3α$阈值高于$3α$阈值的选择性探测。通过测量具有紧凑的带电粒子探测器的3 $α$最终状态来确定$^{12} $ C中各个级别的过渡。先前确定的向狭窄水平的过渡得到了证实，并首次观察到了新的过渡到更广泛的水平。在这里，我们报告了横截面，推断部分$γ$ -DECAY宽度，并讨论直接捕获机制的相对重要性。
Our understanding of the low-lying resonance structure in $^{12}$C remains incomplete. We have used the $^{11}\text{B}(p,3α)γ$ reaction at proton energies of $E_p=0.5-2.7$ MeV as a selective probe of the excitation region above the $3α$ threshold in $^{12}$C. Transitions to individual levels in $^{12}$C were identified by measuring the 3$α$ final state with a compact array of charged-particle detectors. Previously identified transitions to narrow levels were confirmed and new transitions to broader levels were observed for the first time. Here, we report cross sections, deduce partial $γ$-decay widths and discuss the relative importance of direct and resonant capture mechanisms.
