Determination of the $$^8{rm B}(p,gamma)^9{rm C}$$ reaction rate through direct nuclear reaction theories
直接反応論による$$^8{rm B}(p,gamma)^9{rm C}$$の反応率の決定
福井 徳朗; 緒方 一介*; 蓑茂 工将*; 八尋 正信*
Fukui, Tokuro; Ogata, Kazuyuki*; Minomo, Kosho*; Yahiro, Masanobu*
The $$^8{rm B}(p,gamma)^9{rm C}$$ reaction is expected to ignite the hot pp chain and its astrophysical factor at zero energy $$S_{18}$$(0) has been evaluated through alternative measurements. However the analyses in their work were done with primitive reaction model, in which the excitation of nuclei in the intermediate state was not properly taken into account. We have reanalyzed the elastic breakup reaction $$^{208}{rm Pb}(^9{rm C}, p^8B)^{208}{rm Pb}$$ and the proton removal reactions $$^{12}{rm C}(^9{rm C}, ^8{rm B})$$ and $$^{27}{rm Al}(^9{rm C}, ^8{rm B})$$ by means of the method of the continuum-discretized coupled-channels (CDCC). The CDCC is able to calculate distorted waves employing the coupled-channels approach regarding bound-continuum states couplings as well as continuum-continuum ones. Furthermore, in order to analyze the transfer reaction $$^8{rm B}(d,n)^9{rm C}$$, we have constructed the coupled-channels Born approximation (CCBA) model, in which excitation of $$d$$ and $$^9{rm C}$$ is explicitly taken into account by CDCC.
使用言語 : English
掲載資料名 : JPS Conference Proceedings (Internet)
: 14
ページ数 : p.020513_1 - 020513_3
発行年月 : 2017/02
出版社名 : 日本物理学会
発表会議名 : 14th International Conference on Nuclei in the Cosmos (NIC 2016)
開催年月 : 2016/06
開催都市 : Niigata
開催国 : Japan
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登録番号 : BB20152950
抄録集掲載番号 : 45001218
論文投稿番号 : 19449
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