Equation of state at finite temperature and chemical potential, lattice QCD results

TL;DR

This study uses lattice QCD simulations to explore the equation of state at finite temperature and chemical potential, employing reweighting techniques to extend results to higher chemical potentials.

Contribution

It introduces a lattice QCD approach with reweighting to analyze the equation of state at finite chemical potential, covering higher temperature and chemical potential ranges.

Findings

Extended the equation of state to baryon chemical potentials of 500-600 MeV.

Used overlap improving multi-parameter reweighting technique.

Results obtained on the line of constant physics.

Abstract

We present an N_t=4 lattice study for the equation of state of 2+1 flavour staggered, dynamical QCD at finite temperature and chemical potential. We use the overlap improving multi-parameter reweighting technique to extend the equation of state for non-vanishing chemical potentials. The results are obtained on the line of constant physics and our physical parameters extend in temperature and baryon chemical potential upto \approx 500-600 MeV.