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arXiv 1412.8577nucl-ex
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木马法探索$\rm ^8Be$诱发核反应的实验研究

Experimental study to explore the $\rm ^8Be$ induced nuclear reaction via the Trojan Horse Method

Wen Qun-Gang, Li Cheng-Bo, Zhou Shu-Hua, Bakhadir Irgaziev, Fu Yuan-Yong, Claudio Spitaleri, Marco La Cognata, Zhou Jing, Meng Qiu-Ying, Livio Lamia, Marcello Lattuada

摘要:

为了探索$\rm ^8Be$诱导天体物理反应的可能间接方法,采用特洛伊木马方法研究了$\rm ^9Be=({}^8Be+\it n)$团簇结构.首次利用木马方法对超短寿命核$\rm ^8Be$进行了研究,并首次对$l=1$木马核进行了有效的测试。假定$\rm ^9Be$核具有($\rm {}^8Be+\it n$)簇结构并用作特洛伊木马核。$\rm ^8Be$核作为参与者,而中子是通过合适的三体反应$\rm ^9Be +{\it d}\rightarrow α+ {}^6Li +\it n$进行的虚拟$\rm ^8Be +{\it d}\rightarrow α+ {}^6Li$反应的旁观者。重建了实验测量的$\rm ^9Be$内部中子动量分布。实验和理论动量分布的一致性表明,在$\rm ^9Be$内部应该存在($\rm {}^8Be+\it n$)团簇结构.因此,$\rm ^8Be$诱导反应的实验研究,例如通过Hoyle态进行的$\rm ^8Be +α\rightarrow {}^{12}C$反应的实验测量是可能的。

英文摘要:

To explore a possible indirect method for $\rm ^8Be$ induced astrophysical reactions, the $\rm ^9Be=({}^8Be+\it n)$ cluster structure was studied via the Trojan Horse Method. It is the first time to study a super short life nucleus $\rm ^8Be$ via the Trojan Horse Method, and it is the first time to make a valid test for $l=1$ Trojan-horse nucleus. The $\rm ^9Be$ nucleus is assumed to have a ($\rm {}^8Be+\it n$) cluster structure and used as the Trojan-horse nucleus. The $\rm ^8Be$ nucleus acts as a participant, while the neutron is a spectator to the virtual $\rm ^8Be +{\it d}\rightarrow α+ {}^6Li$ reaction via a suitable 3-body reaction $\rm ^9Be +{\it d}\rightarrow α+ {}^6Li +\it n$. The experimental neutron momentum distribution inside $\rm ^9Be$ was reconstructed. The agreement between experimental and theoretical momentum distribution indicates that there should be a ($\rm {}^8Be+\it n$) cluster structure inside $\rm ^9Be$. Therefor the experimental study of $\rm ^8Be$ induced reactions, for example the experimental measurement of the $\rm ^8Be +α\rightarrow {}^{12}C$ reaction proceeding through the Hoyle state, is possible.

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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