新星燃烧条件下$^{25}$ Mg（d，p）PDMATHAAB Mg反应抑制$^{25}$ Al（p，$γ$）$^{26}$ Si共振反应速率的研究
Study of the $^{25}$Mg(d,p)$^{26}$Mg reaction to constrain the $^{25}$Al(p,$γ$)$^{26}$Si resonant reaction rates in nova burning conditions
摘要：
$^{25}$ Al（$p$，$γ$）$^{26}$ Si反应的速率是预测新星爆炸燃烧产生宇宙$γ$射线发射体$^{26}$ Al所需的为数不多的关键核不确定性之一。该反应速率由$^{26}$ Si中的三个关键共振（$J^π=0^{+}$、$1^{+}$和$3^{+}$）控制。只有$3^{+}$共振强度直接受到实验的约束。$^{25}$ Mg（$d$，$p$）反应的高分辨率测量用于确定镜像核$^{26}$ Mg中模拟态的光谱因子。第一个光谱因子值为$0^{+}$状态在6.256 MeV的报告，和严格的上限设置在$1^{+}$状态的值为5.691 MeV，这是不符合早期（$^{4}$他，$^{3}$他）的研究。这些结果被用来估计质子的部分宽度，和共振强度的类似状态的$^{26}$硅有助于$^{25}$铝（$p$，$γ$）$^{26}$硅反应速率在新星燃烧条件。
英文摘要：
The rate of the $^{25}$Al($p$,$γ$)$^{26}$Si reaction is one of the few key remaining nuclear uncertainties required for predicting the production of the cosmic $γ$-ray emitter $^{26}$Al in explosive burning in novae. This reaction rate is dominated by three key resonances ($J^π=0^{+}$, $1^{+}$ and $3^{+}$) in $^{26}$Si. Only the $3^{+}$ resonance strength has been directly constrained by experiment. A high resolution measurement of the $^{25}$Mg($d$,$p$) reaction was used to determine spectroscopic factors for analog states in the mirror nucleus, $^{26}$Mg. A first spectroscopic factor value is reported for the $0^{+}$ state at 6.256 MeV, and a strict upper limit is set on the value for the $1^{+}$ state at 5.691 MeV, that is incompatible with an earlier ($^{4}$He,$^{3}$He) study. These results are used to estimate proton partial widths, and resonance strengths of analog states in $^{26}$Si contributing to the $^{25}$Al($p$,$γ$)$^{26}$Si reaction rate in nova burning conditions.
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