Gd-149:What's confirmed? What's new?

A long run performed with EUROGAM II allowed remeasuring the Gd-149 superdeformed (SD) band 1. The Delta I = 4 bifurcation in band 1 is confirmed and two resolved gamma-ray transitions linking the SD band 1 and the normal deformed states have been observed

Gd-149:What's confirmed? What's new?

A long run performed with EUROGAM II allowed remeasuring the Gd-149 superdeformed (SD) band 1. The Delta I = 4 bifurcation in band 1 is confirmed and two resolved gamma-ray transitions linking the SD band 1 and the normal deformed states have been observed

Superdeformed nuclei produced in alpha xn channel in the A similar or equal to 150 mass region

The aim of this work is to get more information about the population mechanism of superdeformed (SD) bands in the A similar or equal to 150 mass region. Usually, SD bands were populated in heavy-ion induced fusion reactions and most of them have been seen in xn exit channels. With the new generation of gamma-ray arrays, we are able to see SD structures populated in charged particle channels. Four experiments have been performed at the Vivitron accelerator in Strasbourg using the EUROGAM II spectrometer to study these phenomena (especially in alpha-particle channels)