Interference effect between neutron direct and resonance capture reactions for neutron-rich nuclei
湊 太志; 福井 徳朗
Minato, Futoshi; Fukui, Tokuro
The capture reaction can be divided into two parts, that is the compound and direct processes. For most stable nuclei, the compound process occupies a large part of the neutron capture cross section. However, it has been pointed out that the direct process comes to play a comparable role to the compound one at a low energy in light and neutron-rich nuclei, where the number of resonance state at the neutron threshold energy is relatively small. In addition, there is an interference term between the direct and compound processes. However, it is usually neglected for most nuclei, because either of the compound or the direct process is more important than the other, its contribution becomes negligible. However, some experiment data have given an implication of the existence of the interference effect, and Mengoni and Otsuka reported that the experimental results of capture cross section can be described by taking into account it. It is then natural as a next step to have a concern whether the interference effect comes to play a role for neutron-rich nuclei as well. We therefore calculate the neutron capture reaction for neutron-rich nuclei and study the interference effect on it. We will present some results for neutron-rich nuclei and the interference effect becomes important.
使用言語 : English
掲載資料名 : EPJ Web of Conferences (Internet)
: 163
ページ数 : p.00037_1 - 00037_5
発行年月 : 2017/11
出版社名 : EDP Sciences
発表会議名 : 7th International Conference on Heavy-Ion Collisions at Near-Barrier Energies (FUSION-17)
開催年月 : 2017/02
開催都市 : Hobart
開催国 : Australia
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登録番号 : BB20160926
抄録集掲載番号 : 46000018
論文投稿番号 : 19659
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