Abstract The compound nucleus model is employed to calculate the $$\gamma $$ γ decay after neutron capture by gadolinium isotopes $$^{155}$$ 155 Gd and $$^{157}$$ 157 Gd. respective cascades are analyzed for possible use in rare-event searc...

The Hénon family has been shown to have period-doubling cascades. We show here that the same occurs for a much larger class: Large perturbations do not destroy cascades. Furthermore, we can classify the period of a cascade in terms of the set of orbits it contains, and count the number of cascades of each period. This class of families extends a general theory explaining why cascades occur [5].