Abstrakt
Measurements of gamma-ray cascades originating from radiative neutron capture in several deformed nuclei were performed using different experimental setups. Specifically, two-step gamma cascades following the capture of thermal neutrons were measured at the Rez reactor, while multi-step gamma cascades following the neutron capture were measured with 4 pi BaF(2) detectors at isolated resonances in Los Alamos and in unresolved resonance region in Karlsruhe.
Experimental data from these experiments were analyzed within the statistical approach using the DICEBOX code. Results of the analysis indicate that the scissors mode of excited nuclei plays an important role in the gamma decay of all the deformed nuclei studied.
Properties of the mode seen from these experiments are discussed.