Electric dipole polarizability of $^{58}$Ni
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arXiv
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| Autores principales: | , , , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | |
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| author | Brandherm, I. Bonaiti, F. von Neumann-Cosel, P. Bacca, S. Colò, G. Jansen, G. R. Li, Z. Z. Matsubara, H. Niu, Y. F. Reinhard, P. -G. Richter, A. Roca-Maza, X. Tamii, A. |
| author_facet | Brandherm, I. Bonaiti, F. von Neumann-Cosel, P. Bacca, S. Colò, G. Jansen, G. R. Li, Z. Z. Matsubara, H. Niu, Y. F. Reinhard, P. -G. Richter, A. Roca-Maza, X. Tamii, A. |
| contents | The electric dipole strength distribution in $^{58}$Ni 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 $α_\mathrm{D}(^{58}{\rm Ni}) = 3.48(31)$ fm$^3$. 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. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_00610 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Electric dipole polarizability of $^{58}$Ni Brandherm, I. Bonaiti, F. von Neumann-Cosel, P. Bacca, S. Colò, G. Jansen, G. R. Li, Z. Z. Matsubara, H. Niu, Y. F. Reinhard, P. -G. Richter, A. Roca-Maza, X. Tamii, A. Nuclear Experiment Nuclear Theory The electric dipole strength distribution in $^{58}$Ni 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 $α_\mathrm{D}(^{58}{\rm Ni}) = 3.48(31)$ fm$^3$. 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. |
| title | Electric dipole polarizability of $^{58}$Ni |
| topic | Nuclear Experiment Nuclear Theory |
| url | https://arxiv.org/abs/2410.00610 |