Speaker
Description
The samarium isotopic chain provides us with an opportunity to study how the statistical properties, such as the nuclear level density (NLD) and $\gamma$-ray strength function ($\gamma$SF), are effected by deformation.
In 2018, an experiment was carried out at the Oslo Cyclotron Laboratory where we studied the $^{152}$Sm$(p,p^\prime\gamma)^{152}$Sm and $^{154}$Sm$(p,p^\prime\gamma)^{154}$Sm reactions. The NLD and $\gamma$SF were extracted using the Oslo method for these reactions. The $\gamma$SFs were plotted together with data from $(\gamma,n)$ experiments in order to distinguish several resonances which are seen in $^{152,154}$Sm.
In this work, a resonance compatible with the Scissors Mode was found in both isotopes. Finally, the strength of the scissors resonance, $B_{SR}(M1)$, for both $^{152}$Sm and $^{154}$Sm were extracted. These $B_{SR}(M1)$ values will be compared with other available samarium isotopes to see how this changes with deformation.