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Deformation of the N = Z nucleus Sr-76 using β-decay studies

AuthorsNácher, Enrique ; Algora, Alejandro ; Rubio, Berta ; Taín, José Luis ; Cano Ott, Daniel; Courtin, S.; Dessagne, Ph.; Maréchal, F.; Miehé, Ch.; Poirier, E.; García Borge, María José ; Escrig, Diego ; Jungclaus, Andrea ; Sarriguren, Pedro ; Tengblad, Olof ; Gelletly, W.; Fraile, Luis M. ; Le Scornet, G.
Keywords[PACS] Nucleon distributions and halo features
[PACS] Single-particle levels and strength functions
[PACS] Relation with nuclear matrix elements and nuclear structure
[PACS] Properties of specific nuclei listed by mass ranges: 59 ≤ A ≤ 89
Issue Date9-Jun-2004
PublisherAmerican Physical Society
CitationPhysical Review Letters 92(23): 232501 (2004)
AbstractA novel method of deducing the deformation of the N=Z nucleus Sr-76 is presented. It is based on the comparison of the experimental Gamow-Teller strength distribution B(GT) from its β decay with the results of quasi-random-phase approximation calculations. This method confirms previous indications of the strong prolate deformation of this nucleus in a totally independent way. The measurement has been carried out with a large total absorption gamma spectrometer, "Lucrecia," newly installed at CERN-ISOLDE.
Description4 pages, 2 figures.-- PACS nrs.: 21.10.Gv, 21.10.Pc, 23.40.Hc, 27.50.+e.--ArXiv pre-print available at: http://arxiv.org/abs/nucl-ex/0402001v3
Publisher version (URL)http://dx.doi.org/10.1103/PhysRevLett.92.232501
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