High-spin μs isomeric states in 96Ag

A. D. Becerril, G. Lorusso, A. M. Amthor, T. Baumann, D. Bazin, J. S. Berryman, B. A. Brown, H. L. Crawford, A. Estrade, A. Gade, T. Ginter, C. J. Guess, M. Hausmann, G. W. Hitt, P. F. Mantica, M. Matos, R. Meharchand, K. Minamisono, F. Montes, G. PerdikakisJ. Pereira, M. Portillo, H. Schatz, K. Smith, J. Stoker, A. Stolz, R. G.T. Zegers

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The isomeric and β decays of the N=Z+2 nucleus 96Ag were investigated at the National Superconducting Cyclotron Laboratory. A cascade of γ-ray transitions originating from the deexcitation of a microsecond isomer was observed for the first time and was found in coincidence with two previously known transitions with energies of 470 and 667 keV. The isomeric half-life was determined as 1.45(7) μs, more precise than previously reported. The existence of a second, longer-lived microsecond isomer, associated with a 743-keV γ transition, is also proposed here. Shell model results within the (p3/2p1/2f5/2g9/2) model space, using the jj44b interaction, reproduced level energies and isomeric decay half-lives reasonably well.

Original languageEnglish
Article number041303
JournalPhysical Review C - Nuclear Physics
Issue number4
StatePublished - Oct 12 2011


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