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arXiv · 1903.10164

$α$ scattering cross sections on $^{12}$C with microscopic coupled-channel calculation

Yoshiko Kanada-En'yo·Kazuyuki Ogata
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Abstract

$α$ elastic and inelastic scattering on $^{12}$C is investigated with the coupled-channel calculation using microscopic $α$-$^{12}$C potentials, which are derived by folding the Melbourne $g$-matrix $NN$ interaction with the matter and transition densities of $^{12}$C. These densities are obtained by a microscopic structure model of the antisymmetrized molecular dynamics combined with and without the $3α$ generator coordinate method. The calculation reproduces satisfactorily well the observed elastic and inelastic cross sections at incident energies of $E_α=130$~MeV, 172.5~MeV, 240~MeV, and 386~MeV with no adjustable parameter. Isoscalar monopole and dipole excitations to the $0^+_2$, $0^+_3$, and $1^-_1$ states in the $α$ scattering are discussed.

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Yoshiko Kanada-En'yo, Kazuyuki Ogata. 2019-03-25. $α$ scattering cross sections on $^{12}$C with microscopic coupled-channel calculation. https://doi.org/10.1103/physrevc.99.064601

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