Probing large collectivity 32Mg with a recoil-distance lifetime measurement

The ³²Mg isotope lies within the N = 20 island of inversion where intruder configurations drive collective phenomena. However, there is limited information on the B(E 2) values in ³²Mg which are key quantities to understand quadrupole collectivity and the role of intruder configuration mixing. To determine model-independent B(E 2) values, lifetime measurements of excited states are crucial. In ³²Mg the prompt 2₁⁺ and 4₁⁺ states are expected to have lifetimes on the order of 1 to 10 ps, which is the typical range for well-established methods such as RDM and DSAM. The experiment was performed at the NSCL using the TRIPLEX, GRETINA, and S800 devices, enabling sensitive measurements of the lifetimes of these states. The results will be presented in the context of collective models in the island of inversion.