학술논문
The (6+) isomer in 102Sn revisited: Neutron and proton effective charges close to the double shell closure
Document Type
Author
Grawe, H.; Straub, K.; Faestermann, T.; Górska, M.; Hinke, C.; Krücken, R.; Nowacki, F.; Böhmer, M.; Boutachkov, P.; Geissel, H.; Gernhäuser, R.; Gottardo, A.; Grebosz, J.; Kurz, N.; Liu, Z.; Maier, L.; Pietri, S.; Podolyák, Zs; Steiger, K.; Weick, H.; Wollersheim, H. J.; Woods, P. J.; Al-Dahan, N.; Alkhomashi, N.; Atac, A.; Blazhev, A.; Braun, N.; Celikovic, I.; Davinson, T.; Dillmann, I.; Domingo-Pardo, C.; Doornenbal, P.; Farrelly, G.; Farinon, F.; de France, G.; Gerl, J.; Goel, N.; Habermann, T.; Hoischen, R.; Janik, R.; Karny, M.; Kaskas, A.; Kojouharov, I.; Kröll, Th.; Lewitowicz, M.; Litvinov, Yu. A.; Myalski, S.; Nebel, F.; Nishimura, S.; Nociforo, C.; Nyberg, Johan, 1955; Parikh, A.; Procházka, A.; Regan, P. H.; Rigollet, C.; Schaffner, H.; Scheidenberger, C.; Schwertel, S.; Söderström, Pär-Anders, 1980; Steer, S.; Stolz, A.; Strmen, P.
Source
Physics Letters B. 820
Subject
Language
English
ISSN
0370-2693
Abstract
In a high-energy fragmentation experiment at GSI an Iπ = (6+) isomer and its γ-decay are identified in 102Sn, the two-neutron neighbour of the doubly-magic 100Sn. Its half-life is measured to be T1/2 = 367(11) ns. The possible existence of further isomers is discussed in the framework of large-scale shell model (LSSM) calculations including up to five particle-hole excitations of the 100Sn core. From the precise B(E2; 6+ → 4+) strength and the recently remeasured value for B(E2; 8+ → 6+) in the two-proton hole neighbour 98Cd effective E2 polarization charges for protons and neutrons were inferred including LSSM corrections within the full N=4 0hω space. The results are discussed in comparison to predicted and empirically determined effective operators.