Transition Probabilities and Static Moments in Transitional Nuclei

Abstract

Electromagnetic transition probabilities and static moments of excited nuclear states are known to be good probes of nuclear structure. Therefore, a systematic analysis of the large amount of existing experimental data for these observables is expected to provide valuable information about the respective isotopes. It is the purpose of this talk to show that a combined analysis of static magnetic moments of 2 +1 states and B(E2) transition probabilities for even-even nuclei can be used to obtain effective numbers of valence nucleons. This kind of information is of particular interest in cases where subshell closures are found. For example, it is well known1 that for the transitional nuclei in the A=150 region the Z=64 subshell is active when the number of neutrons N<90, but disappears for N≥90. A similar situation exists in the A=100 region, where the Z=38 subshell is active for N≤58.KeywordsEffective ChargeValence NeutronInteract Boson ModelValence NucleonExcited Nuclear StateThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.