Brandherm, IsabelleBonaiti, FrancescaVon Neumann-Cosel, PeterBacca, S.Colò, GianlucaJansen, G.R.Li, Zheng ZhengMatsubara, H.Niu, YifeiReinhard, P.-G.Richter, AndreasRoca Maza, XavierTamii, Atsushi2025-06-272025-06-272025-02-012469-9985https://hdl.handle.net/2445/221877The electric dipole strength distribution in 58Ni between 6 and 20 MeV has been determined from proton inelastic scattering experiments at very forward angles at RCNP, Osaka. The experimental data are rather well reproduced by quasiparticle random-phase approximation calculations including vibration coupling, despite a mild dependence on the adopted Skyrme interaction. They allow an estimate of the experimentally inaccessible high-energy contribution above 20 MeV, leading to an electric dipole polarizability D⁡(58Ni)=3.48⁢(31)⁢fm3. This serves as a test case for recent extensions of coupled-cluster calculations with chiral effective field theory interactions to nuclei with two nucleons on top of a closed-shell system.8 p.application/pdfeng(c) American Physical Society, 2025Polarització (Física nuclear)Reactors nuclearsEstructura nuclearPolarization (Nuclear physics)Nuclear reactorsNuclear structureinfo:eu-repo/semantics/article7589462025-06-27info:eu-repo/semantics/openAccess