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用扩展的厚靶方法首次直接测量$^{11}$ C（PDMATHAAB，p）$^{14}$ N恒星反应

First direct measurement of the $^{11}$C($α$, p)$^{14}$N stellar reaction by an extended thick-target method

S. Hayakawa, S. Kubono, D. Kahl, H. Yamaguchi, D. N. Binh, T. Hashimoto, Y. Wakabayashi, J. J. He, N. Iwasa, S. Kato, T. Komatsubara, Y. K. Kwon, T. Teranishi

备注：
8 pages, 8 figures, final version as submitted to Physical Review C for publication after peer-review
发表信息：
Physical Review C, Volume 93, (2016) id.065802
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摘要：

$^{11}$ C（$α$，p）反应是高温爆发星中一个重要的$α$诱导反应，与$β$限制的氢燃烧过程竞争.利用扩展的厚靶飞行时间方法，首次测量了能量为1.3 - 4.5 MeV的基态跃迁（$α$，$p_{0}$）、激发态跃迁（$α$，$p_{1}$）和激发态跃迁（$α$，$p_{2}$）的反应截面.我们修正了反应速率的数值积分，包括（$α$，$p_{1}$）和（$α$，$p_{2}$）的贡献，也低的共振（$α$，$p_{0}$）使用目前和以前的实验数据，这是完全忽略了在以前的编辑工作。目前的总反应速率介于以前的（$α$，$p_{0}$）速率和Hauser-Feshbach统计模型计算的总速率之间，这与相关的爆炸性氢燃烧情景如$νp$-过程是一致的。

英文摘要：

The $^{11}$C($α$, p) reaction is an important $α$-induced reaction competing with $β$-limited hydrogen-burning processes in high-temperature explosive stars. We directly measured its reaction cross sections both for the ground-state transition ($α$, $p_{0}$) and the excited-state transitions ($α$, $p_{1}$) and ($α$, $p_{2}$) at relevant stellar energies 1.3 - 4.5 MeV by an extended thick-target method featuring time of flight for the first time. We revised the reaction rate by numerical integration including the ($α$, $p_{1}$) and ($α$, $p_{2}$) contributions and also low-lying resonances of ($α$, $p_{0}$) using both the present and the previous experimental data which were totally neglected in the previous compilation works. The present total reaction rate lies between the previous ($α$, $p_{0}$) rate and the total rate of the Hauser-Feshbach statistical model calculation, which is consistent with the relevant explosive hydrogen-burning scenarios such as the $νp$-process.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

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