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Title: The single-particle and collective features in the nuclei just above Sn-132
Authors: Mach, H., Fraile, Luis M., Arndt, O., Blazhev, A., Boelaert, N., García Borge, María José, Boutami, Rafik, Bradley, H., Braun, N., Brown, B. A., Butler, P. A., Covello, A., Dlouhy, Z., Fransen, C., Fynbo, H. O. U., Gargano, A., Hinke, Ch., Hoff, P., Joinet, A., Jokinen, A., Jolie, J., Köster, U., Korgul, A., Kratz, K.-L., Kröll, T., Kurcewicz, W., Nyberg, J., Reillo, Eva María, Ruchowska, E., Schwerdtfeger, W., Simpson, G. S., Stanoiu, M., Tengblad, Olof, Thirolf, P. G., Ugryumov, V., Walters, W. B.
Keywords: [PACS] Giant resonances
[PACS] Compound nucleus
Issue Date: Apr-2007
Publisher: Jagellonian University
Abstract: The Advanced Time Delayed method has been used to measure the lifetimes of excited states in the exotic nuclei Sb-134, Sb-135 and Te-136 populated in the beta decay of Sb-134, Sb-135 and Te-136, respectively. High purity Sn beams were extracted at the ISOLDE separator using a novel production technique utilizing the molecular SnS+ beams to isolate Sn from contaminating other fission products. Among the new results we have identified the 1/2+ state in Sb-135 and its E2 transition to the lower-lying 5/2+ state was found to be surprisingly collective. This measurement represents also one of the first applications of the LaBr3 scintillator to ultra fast timing.
Description: 6 pages, 2 figures.-- PACS nrs.: 24.30.Cz, 25.70.Gh.-- Presented at the Zakopane Conference on Nuclear Physics (Zakopane, Poland, Sep. 4–10, 2006).
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ISSN: 0587-4254
Citation: Acta Physica Polonica B 38(4): 1213-1218 (2007)
Appears in Collections:(CFMAC-IEM) Artículos
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