High-spin mu s isomeric states in Ag-96

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

来源：Physical Review C, 2011, 84(4): 041303.

DOI：10.1103/PhysRevC.84.041303

The isomeric and beta decays of the N = Z + 2 nucleus Ag-96 were investigated at the National Superconducting Cyclotron Laboratory. A cascade of gamma-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) mu s, more precise than previously reported. The existence of a second, longer-lived microsecond isomer, associated with a 743-keV gamma transition, is also proposed here. Shell model results within the (p(3/2)p(1/2)f(5/2)g(9/2)) model space, using the jj44b interaction, reproduced level energies and isomeric decay half-lives reasonably well.

• 出版日期2011-10-12