Speaker
Description
Measurement of resonances provides a tool to study the hadronic phase, the phase between chemical and kinematic freeze-out in the evolution of the quark-gluon plasma (QGP). Baryonic resonances, such as $\Xi(1530)^0$ (net-strangeness = -2) with a relatively long lifetime ($\sim$ 22 fm/$c$), serve as key probes to investigate the effects of rescattering and regeneration in the hadronic phase by comparing resonances with different lifetimes and by studying their yields across different colliding systems. In addition, the study of these resonances can provide insights into strangeness enhancement. The multiplicity-dependent production of the $\Xi(1530)^0$ in pp collisions at $\sqrt{s} = 13.6$ TeV, measured with ALICE in Run 3, is presented and compared with corresponding results at 13 TeV. Based on these results, the effects of the hadronic phase and strangeness enhancement as a function of multiplicity in pp collisions will be discussed.
