"Chiral density"@en . "Heavy-Ion Collisions"@en . "Topological susceptibility"@en . . "Marco Ruggieri" . . "c4fa167eb39ed55881799e81cdff8c5d" . . "Ruggieri" . "Marco" . "QCD phase diagram"@en . "Quantum Chromodynamics"@en . "Quark-Gluon Plasma"@en . . . . "Chiral Fermions"@en .