Speaker
Description
Chiral symmetry restoration remains the clearest signature of the onset of deconfinement and the formation of the quark--gluon plasma during the evolution of relativistic heavy ion collisions. With the restoration of chiral symmetry in the nuclear medium, parity partners are expected to become mass degenerate. However, how this is reflected in the evolution of hadron properties has long been subject to speculation. Recent Lattice QCD (LQCD) calculations show that negative parity partners exhibit a sharp decrease in mass in the presence of a QGP medium, whereas the positive parity partners remain on their mass-shell throughout the pseudo-critical transition. Recently, the reconstruction of the $\Omega(2012)$ (potential negative parity partner of ground state $\Omega$) and $\Xi(1820)$ (negative parity partner of the $\Xi(1530)$) states have been performed by ALICE in pp collisions at $\sqrt{s} = 13.6$ TeV. We present measurements of both resonances in minimum bias and high multiplicity triggered events, which will ultimately serve as a benchmark for future measurements in larger collision systems.
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