Accepted Thursday Nov 05, 2009
We have re-investigated the beta decay of the three isomers of 116Ag at the Holifield Radioactive Ion Beam Facility (HRIBF). Through the use of half-life information, we have been able to construct individual decay schemes for each isomer, and correct what was a puzzling inconsistency with the published data, namely the beta feeding of 2+ states by a 5+ isomer. Our results indicate that the feeding of these levels arises from a 3+ isomer in 116Ag. A total of 271 gamma-ray transitions (159 new) were assigned to 148 levels (94 new) from the beta-decay of 116Agm1,m2,gs. Significant deviations are observed from IBM-2 calculations for the decay of the 0+ and 2+ members of the previously assigned three-phonon quintuplet. Candidate states for the quadrupole-octupole quintuplet states and pg9/2-pp1/2, pg9/2-pp3/2, nh11/2-ns1/2, nh11/2-nd3/2, and nh11/2-nd5/2 broken pair states are assigned.