Nucleons near the QCD deconfinement transition

TL;DR

This study uses lattice QCD simulations to analyze hadronic screening correlators around the deconfinement transition, revealing weakly interacting quarks above Tc and chiral symmetry restoration effects below Tc.

Contribution

It provides non-perturbative lattice results on hadronic correlators near the QCD deconfinement transition, highlighting differences in mesonic and baryonic behavior.

Findings

No significant thermal effects in mesonic correlators below Tc

Evidence of weakly interacting quarks above Tc

Precursor effects for chiral symmetry restoration below Tc

Abstract

Using non-perturbative lattice method we studied hadronic screening correlators above and immediately below the deconfinement transition temperature, Tc, in the quenched approximation with lattice spacing of 1/(8T) using clover improved Wilson fermions. Simulations were performed at temperatures T /Tc = 0, 0.95 and 1.5. Mesonic screening correlators show no statistically significant thermal effects below Tc, and clear evidence for weakly interacting quarks above Tc . Baryon screening correlators yield similar physics above Tc, but show precursor effects for chiral symmetry restoration below Tc .