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Dostęp zamkniętyLow-spin particle-core and hole-core excitations in Ca41,47,49 isotopes studied by cold-neutron-capture reactions
| dc.abstract.en | We present recent results on the structure of the one-valence-particle41Ca and49Ca nuclei and the one-valence-hole47Ca nucleus. The isotopes of interest were populated via the cold-neutron-capture reactions40Ca(n,γ),48Ca(n,γ), and46Ca(n,γ), respectively. The experiments were performed at the Institut Laue-Langevin, withinthe EXILL campaign, which employed a large array of high-purity germanium (HPGe) detectors. Theγdecay and level schemes of these nuclei were investigated byγ-ray coincidence relationships, leading to theidentification of 41, 10, and 6 new transitions in41Ca,47Ca, and49Ca, respectively. Branching ratios andintensities were extracted for theγdecay from each state, andγ-ray angular correlations were performedto establish a number of transition multipolarities and mixing ratios, thus helping in the spin assignment ofthe states. The experimental findings are discussed along with microscopic, self-consistent beyond-mean-fieldcalculations performed with the hybrid configuration mixing model, based on a Skyrme SkX Hamiltonian. Thelatter suggests that a fraction of the low-spin states of the41Ca,49Ca, and47Ca nuclei is characterized by thecoexistence of either 2p-1h (two-particle–one-hole) and 1p-2h excitations, or couplings between single-particleor single-hole degrees of freedom and collective vibrations (phonons) of the doubly-magic “core.” |
| dc.affiliation | Uniwersytet Warszawski |
| dc.contributor.author | Porzio, C. |
| dc.contributor.author | Niu, Y. |
| dc.contributor.author | Mutti, P. |
| dc.contributor.author | Colò, G. |
| dc.contributor.author | Fornal, B. |
| dc.contributor.author | Leoni, S. |
| dc.contributor.author | Cieplicka-Oryńczak, N. |
| dc.contributor.author | Bottoni, S. |
| dc.contributor.author | Gamba, E. R. |
| dc.contributor.author | France, G. de |
| dc.contributor.author | Crespi, F. C. L. |
| dc.contributor.author | Ceruti, S. |
| dc.contributor.author | Urban, Waldemar |
| dc.contributor.author | Szpak, B. |
| dc.contributor.author | Soldner, T. |
| dc.contributor.author | Simpson, G. |
| dc.contributor.author | Bocchi, G. |
| dc.contributor.author | Bortignon, P. F. |
| dc.contributor.author | Mengoni, D. |
| dc.contributor.author | Million, B. |
| dc.contributor.author | Michelagnoli, C. |
| dc.contributor.author | Köster, U. |
| dc.contributor.author | Jentschel, M. |
| dc.contributor.author | Iskra, Ł. W. |
| dc.contributor.author | Ur, C. A. |
| dc.contributor.author | Türler, A. |
| dc.contributor.author | Bracco, A. |
| dc.contributor.author | Blanc, A. |
| dc.contributor.author | Benzoni, G. |
| dc.contributor.author | Bazzacco, D. |
| dc.date.accessioned | 2024-01-25T05:27:18Z |
| dc.date.available | 2024-01-25T05:27:18Z |
| dc.date.issued | 2021 |
| dc.description.finance | Publikacja bezkosztowa |
| dc.description.number | 1 |
| dc.description.volume | 103 |
| dc.identifier.doi | 10.1103/PHYSREVC.103.014320 |
| dc.identifier.issn | 2469-9985 |
| dc.identifier.uri | https://repozytorium.uw.edu.pl//handle/item/111559 |
| dc.identifier.weblink | https://link.aps.org/article/10.1103/PhysRevC.103.014320 |
| dc.language | eng |
| dc.pbn.affiliation | physical sciences |
| dc.relation.ispartof | Physical Review C |
| dc.relation.pages | 014320 (17 stron) |
| dc.rights | ClosedAccess |
| dc.sciencecloud | nosend |
| dc.title | Low-spin particle-core and hole-core excitations in Ca41,47,49 isotopes studied by cold-neutron-capture reactions |
| dc.type | JournalArticle |
| dspace.entity.type | Publication |