Equation of state for two-flavor QCD with an improved Wilson quark action at non-zero chemical potential

TL;DR

This paper investigates the equation of state for two-flavor QCD using an improved Wilson quark action at non-zero chemical potential, providing preliminary results to test uncertainties in lattice QCD thermodynamics.

Contribution

It presents systematic lattice QCD simulations with an improved Wilson fermion formulation to explore thermodynamic properties at finite chemical potential, complementing previous staggered fermion studies.

Findings

Preliminary Taylor expansion coefficients of the grand partition function.

Insights into the equation of state at non-zero chemical potential.

Comparison with results from other fermion formulations.

Abstract

The QCD thermodynamics on the lattice provides fundamental theoretical grounds to analyze the various experimental data in relativistic heavy ion collisions. So far, most of the numerical simulations on the lattice have been performed by using the staggered-type fermion actions. Therefore it is important to carry out studies using different fermion formulations to test the uncertainties of the lattice QCD results. For this purpose, we perform systematic simulations of two-flavor QCD with an improved Wilson quark action to investigate the equation of state. We report the current status of our project and show the preliminary results of the Taylor expansion coefficients of the thermodynamic grand partition function in terms of chemical potential.