Equation of state and more from lattice regularized QCD

TL;DR

This paper reports on lattice QCD calculations of the equation of state with multiple quark flavors, showing that key observables related to deconfinement and chiral symmetry restoration change rapidly in the same temperature range.

Contribution

It provides new lattice QCD results on the equation of state with physical quark masses across different lattice cut-offs.

Findings

Observables for deconfinement and chiral symmetry restoration vary rapidly in the same temperature regime.

Results are consistent across multiple lattice spacings, indicating controlled discretization effects.

The study enhances understanding of QCD thermodynamics near the transition temperature.

Abstract

We present results from a calculation of the QCD equation of state with two light (up, down) and one heavier (strange) quark mass performed on lattices with three different values of the lattice cut-off. We show that also on the finest lattice analyzed by us observables sensitive to deconfinement and chiral symmetry restoration, respectively, vary most rapidly in the same temperature regime.