Speaker
Description
We propose to search for the intruder band that builds on the deformed excited $0^+$ states in $^{120}$Sn using fusion-evaporation. While our recent $(n,\gamma)$ measurement showed that the low-lying excited $0^+_{2,3}$ states in $^{120}$Sn are deformed, the expected rotational band which builds on the deformed $0^+$ states have not yet been observed. The aim of this complementary fusion-evaporation experiment is to identify and place the high-spin members of the intruder band, exploiting the high sensitivity of the AGATA+SAURON setup. Observation of the band structure will unveil the underlying deformation and elucidate whether the intruder band is rotational, vibrational, or a mixture of both. Combined with the systematics of the other Sn isotopes, our results will contribute to improve the understanding of shell evolution in the semimagic chain.
