QCD: Restoration of Chiral Symmetry and Deconfinement for Large Nf
Abstract
Exploiting the recent lattice results for the infrared gluon propagator with light dynamical quarks, we solve the gap equation for the quark propagator. We thus model the chiral symmetry breaking mechanism with increasing number of flavours and study confinement (intimately tied with the analytic properties of QCD Schwinger functions) order parameters. We obtain, with this approach, clear signals of chiral symmetry restoration and deconfinement when the number of light quark flavors exceeds a critical value of Nfc ≈ 8 1, in agreement with the state-of-the-art direct lattice analysis of chiral symmetry restoration in QCD.
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