دورية أكاديمية
The mutable nature of particle-core excitations with spin in the one-valence-proton nucleus 133Sb
| العنوان: | The mutable nature of particle-core excitations with spin in the one-valence-proton nucleus 133Sb |
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| المؤلفون: | G. Bocchi, S. Leoni, B. Fornal, G. Colò, P.F. Bortignon, S. Bottoni, A. Bracco, C. Michelagnoli, D. Bazzacco, A. Blanc, G. de France, M. Jentschel, U. Köster, P. Mutti, J.-M. Régis, G. Simpson, T. Soldner, C.A. Ur, W. Urban, L.M. Fraile, R. Lozeva, B. Belvito, G. Benzoni, A. Bruce, R. Carroll, N. Cieplicka-Oryǹczak, F.C.L. Crespi, F. Didierjean, J. Jolie, W. Korten, T. Kröll, S. Lalkovski, H. Mach, N. Mărginean, B. Melon, D. Mengoni, B. Million, A. Nannini, D. Napoli, B. Olaizola, V. Paziy, Zs. Podolyák, P.H. Regan, N. Saed-Samii, B. Szpak, V. Vedia |
| المصدر: | Physics Letters B, Vol 760, Iss C, Pp 273-278 (2016) |
| بيانات النشر: | Elsevier, 2016. |
| سنة النشر: | 2016 |
| المجموعة: | LCC:Physics |
| مصطلحات موضوعية: | Neutron induced fission, Gamma spectroscopy, Nuclear state lifetime, Large Ge array, Particle-core couplings, Physics, QC1-999 |
| الوصف: | The γ-ray decay of excited states of the one-valence-proton nucleus 133Sb has been studied using cold-neutron induced fission of 235U and 241Pu targets, during the EXILL campaign at the ILL reactor in Grenoble. By using a highly efficient HPGe array, coincidences between γ-rays prompt with the fission event and those delayed up to several tens of microseconds were investigated, allowing to observe, for the first time, high-spin excited states above the 16.6 μs isomer. Lifetimes analysis, performed by fast-timing techniques with LaBr3(Ce) scintillators, revealed a difference of almost two orders of magnitude in B(M1) strength for transitions between positive-parity medium-spin yrast states. The data are interpreted by a newly developed microscopic model which takes into account couplings between core excitations (both collective and non-collective) of the doubly magic nucleus 132Sn and the valence proton, using the Skyrme effective interaction in a consistent way. The results point to a fast change in the nature of particle-core excitations with increasing spin. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 0370-2693 1873-2445 |
| Relation: | http://www.sciencedirect.com/science/article/pii/S0370269316303252; https://doaj.org/toc/0370-2693; https://doaj.org/toc/1873-2445 |
| DOI: | 10.1016/j.physletb.2016.06.065 |
| URL الوصول: | https://doaj.org/article/46b0c578c56d4494b5c8b2982934d063 |
| رقم الأكسشن: | edsdoj.46b0c578c56d4494b5c8b2982934d063 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 03702693 18732445 |
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| DOI: | 10.1016/j.physletb.2016.06.065 |