Quasi-Free α-α Scattering in Be⁹ and C¹² at 37 MeV

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Takuji Yanabu¹, Sukeaki Yamashita¹, Kazuhiko Hosono¹, Seishi Matsuki¹, Tetsumi Tanabe¹, Kiyohiko Takimoto², Yasuhiko Ôkuma², Kouya Ogino³, Shoji Okumura³, and Ryutaro Ishiwari⁴

+ Affiliations

¹Institute for Chemical Research, Kyoto University²Department of Physics, Faculty of Science, Kyoto University³Department of Nuclear Engineering, Faculty of Engineering, Kyoto University⁴Department of Physics, Faculty of Science, Nara Women's University

Received November 10, 1967

Energy and angular correlations between two alpha particles from the Be ⁹(α, 2α)He ⁵ and C ¹²(α, 2α)Be ⁸ reactions were investigated. The incident alpha particle energies were 32.3 MeV and 37.4 MeV for Be ⁹ and 37.4 MeV for C ¹². It is concluded that the quasi-free scattering of incident alpha particles from alpha clusters in Be ⁹ is the main process of the (α, 2α) reaction on Be ⁹. It remains some ambiguity for the mechanism of the (α, 2α) reaction on C ¹² to be explained as a simple quasi-free scattering process.

https://doi.org/10.1143/JPSJ.24.667

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Quasi-Free α-α Scattering in Be⁹ and C¹² at 37 MeV