Low lying excited states of ${}^{24}$O investigated by self-consistent microscopic description of proton inelastic scattering

Abstract

The proton inelastic scattering of ${}^{24}$O($p,p^{\prime }$) at 62 MeV/nucleon is described by a self-consistent microscopic calculation with the continuum particle-vibration coupling (cPVC) method. The SLy5, SkM*, and SGII parameters are adopted as an effective nucleon-nucleon interaction. For all the parameters, the cPVC calculation reproduces very well the first peak at 4.65 MeV in the ${}^{24}$O excitation energy spectrum as well as its angular distribution. The role of the cPVC self-energy strongly depends on the effective interactions. The higher-lying strength around 7.3 MeV is suggested to be a superposition of the $3^{-}$ and $4^{+}$ states by the results with SLy5 and SGII, whereas the SkM* calculation indicates it is a pure $3^{-}$ state. This difference gives a rather strong interaction dependence of the angular distribution corresponding to the higher-lying strength.

5 pages, 5 figures

References in corpus (4)

• Self-consistent description of multipole strength: systematic calculations
• Effects of self-consistency violation in Hartree-Fock RPA calculations for nuclear giant resonances revisited
• Continuum particle-vibration coupling method in coordinate-space representation for finite nuclei
• Self-consistent microscopic description of neutron scattering by ${}^{16}$O based on the continuum particle-vibration coupling method

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