论文标题
$^{25} $ mg（d，p）$^{26} $ mg反应以限制$^{25} $ al（p，$γ$）$^{26} $ si共振率在Nova燃烧条件下
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
论文作者
论文摘要
$^{25} $ al（$ p $，$γ$）$^{26} $ si反应的速率是预测宇宙$γ$ -RAY Emitter $^{26} $ Al In Novae爆炸中所需的少数关键核不确定性之一。该反应速率由三个键共振（$ j^π= 0^{+} $，$ 1^{+} $和$ 3^{+} $中的$^{26} $ si中的$ 1^{+} $。只有$ 3^{+} $共振强度才受到实验的直接限制。 $^{25} $ mg（$ d $，$ p $）的高分辨率测量用于确定镜子核中模拟状态的光谱因子，$^{26} $ mg。报告了$ 0^{+} $状态为6.256 MEV的第一光谱因子值，并且在5.691 MeV的$ 1^{+} $状态下设置了一个严格的上限，这与早期（$^{4} $ He，$^he，$^{3} $）进行了研究。这些结果用于估计质子部分宽度，并在$^{26} $ si中对模拟状态的共振强度有助于$^{25} $ al（$ p $，$ p $，$γ$）$^{26} $ si Si反应率在Nova燃烧条件下。
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.
