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Quantitative description of the $$^{20}$$Ne($$p$$,$$palpha$$)$$^{16}$$O reaction as a means of probing the surface $$alpha$$ amplitude

Yoshida, Kazuki  ; Chiba, Yohei*; Kimura, Masaaki*; Taniguchi, Yasutaka*; En'yo, Yoshiko*; Ogata, Kazuyuki*

The proton-induced $$alpha$$ knockout reaction is one of the reaction probes for the $$alpha$$ clustering. However, it was reported that the theoretical description of the reaction cannot reproduce experimental data. In this work, we describe the $$^{20}$$Ne($$p$$,$$palpha$$)$$^{16}$$O reaction within the distorted wave impulse approximation with a $$alpha$$-$$^{16}$$O cluster wave function constructed by the antisymmetrized molecular dynamics. We show that the $$^{20}$$Ne($$p$$,$$palpha$$)$$^{16}$$O cross section is quantitatively well reproduced by the present framework without any adjustable parameters. This success demonstrates that the proton-induced $$alpha$$ knockout reaction is a quantitative probe for the $$alpha$$ clustering.

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Category:Physics, Nuclear

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