Interpretation of the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>A</mml:mi><mml:mi>≈</mml:mi><mml:mn>100</mml:mn></mml:math>transitional region in the framework of the interacting boson model

Abstract

A detailed study of the transition between the SU(5) and O(6) limit of the interacting boson model (IBA-1) has been performed in a schematic way. A comparison of the experimental excitation energies and $E2$ transition probabilities for neutron-rich Ru and Pd isotopes with this calculation shows that this mass region is well described in terms of this phase transition.NUCLEAR STRUCTURE Transition between the SU(5) and O(6) limit of IBA-1, energy levels, $B(E2)$, comparison with experimental data for $^{98\ensuremath{-}110}\mathrm{Ru}$, $^{110\ensuremath{-}114}\mathrm{Pd}$.