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Article Dans Une Revue Phys.Rev.C Année : 2016

First evidence of γ collectivity close to the doubly magic core Sn132

W. Urban
  • Fonction : Auteur
K. Sieja
T. Rząca-Urban
M. Czerwiński
  • Fonction : Auteur
A.G. Smith
  • Fonction : Auteur
I. Ahmad
  • Fonction : Auteur

Résumé

The Te138 and Xe140 nuclei have been reinvestigated using prompt γ-ray data from spontaneous fission of Cm248, collected with the EUROGAM2 Ge array. γ bands have been identified in both nuclei. The γ band observed in Te138, a nucleus with only six valence nucleons, indicates the presence of collectivity very close to the doubly magic Sn132 core. Such band is even more pronounced in Xe140, the N = 86 isotone of Te138. The newly observed bands are interpreted within the shell model, which reproduce well the γ collectivity at N = 86.

Dates et versions

hal-01554332 , version 1 (03-07-2017)

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Citer

W. Urban, K. Sieja, T. Rząca-Urban, M. Czerwiński, H. Naïdja, et al.. First evidence of γ collectivity close to the doubly magic core Sn132. Phys.Rev.C, 2016, 93 (3), pp.034326. ⟨10.1103/PhysRevC.93.034326⟩. ⟨hal-01554332⟩
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