Study of the $${ {^{25}}}$$Mg(d,p)$${ {^{26}}}$$Mg reaction to constrain the $${ {^{25}}}$$Al(p,$${\gamma }$$)$${ {^{26}}}$$Si resonant reaction rates in nova burning conditions
Study of the $${ {^{25}}}$$Mg(d,p)$${ {^{26}}}$$Mg reaction to constrain the $${ {^{25}}}$$Al(p,$${\gamma }$$)$${ {^{26}}}$$Si resonant reaction rates in nova burning conditions
复制标题
研究 $${ {^{25}}}$$Mg(d,p)$${ {^{26}}}$$Mg 反应以约束 $${ {^{25}}}$$
DOI：
10.1140/epja/s10050-020-00052-9
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Hamill C
中科院分区：
文献类型：
--
作者：
Hamill C
Al（p，）Si反应的速率是预测新星爆炸燃烧产生宇宙射线发射体Al所需的少数关键的剩余核不确定性之一。该反应速率由Si中的三个关键共振（、和）主导。只有共振强度受到实验的直接约束。高分辨率测量的theMg（d，p）反应被用来确定镜像核，镁类似状态的光谱因子。第一个光谱因子值为thestate在6.256 MeV的报道，和严格的上限设置的值为thestate在5.691 MeV，这是不兼容的早期（他，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在Si中有助于theAl（p，）Si反应速率在新星燃烧条件。
The rate of theAl(p,)Si reaction is one of the few key remaining nuclear uncertainties required for predicting the production of the cosmic-ray emitterAl in explosive burning in novae. This reaction rate is dominated by three key resonances (,and) inSi. Only theresonance strength has been directly constrained by experiment. A high resolution measurement of theMg(d,p) reaction was used to determine spectroscopic factors for analog states in the mirror nucleus,Mg. A first spectroscopic factor value is reported for thestate at 6.256 MeV, and a strict upper limit is set on the value for thestate at 5.691 MeV, that is incompatible with an earlier (He,He) study. These results are used to estimate proton partial widths, and resonance strengths of analog states inSi contributing to theAl(p,)Si reaction rate in nova burning conditions.