Measurement of 12C(n,n’) reaction cross section to determine triple-alpha reaction rate in high-density environments
Measurement of 12C(n,n’) reaction cross section to determine triple-alpha reaction rate in high-density environments
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测量 12C(n,n’) 反应截面以确定高密度环境中的三重 α 反应速率
DOI：
10.1051/epjconf/202226011010
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发表时间：
2022
影响因子：
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通讯作者：
Tamaki Sh
中科院分区：
文献类型：
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作者：
Furuno Tatsuya;Doi Takanobu;Himi Kanako;Kawabata Takahiro;Adachi Satoshi;Akimune Hidetoshi;Enyo Shiyo;Fujikawa Yuki;Hijikata Yuto;Inaba Kento;Itoh Masatoshi;Kubono Shigeru;Matsuda Yohei;Murata Isao;Murata Motoki;Okamoto Shintaro;Sakanashi Kosuke;Tamaki Sh
由于中子对12C中的Hoyle态的去激发，在热而稠密的环境中，三α反应的反应速率可以得到增强。为了提高反应速率，需要确定去激截面。我们计划通过使用10 MeV左右的中子束和主动靶系统测量逆反应来获得横截面。在本文中，我们报告了一个验证的原理实验，使用中子束在14兆电子伏。所得截面与已有结果一致，证明了该方法的有效性。
The reaction rate of the triple-alpha reaction can be enhanced in hot and dense environments due to the deexcitation of the Hoyle state in12C by neutrons. The cross section of the deexcitation should be determined for the enhanced reaction rate. We plan to obtain the cross section by measuring the inverse reaction using a neutron beam around 10 MeV and an active target system. In the present paper, we report a proof-of-principle experiment using a neutron beam at 14 MeV. The obtained cross section is consistent with a previous result, demonstrating the validity of our method.