The QCD equation of state at finite T and \mu

TL;DR

This paper computes the QCD equation of state at finite temperature and chemical potential using a reweighting technique on lattice simulations with dynamical quarks, providing insights into the thermodynamics of strongly interacting matter.

Contribution

It introduces the application of an overlap improving multi-parameter reweighting method to study QCD at finite chemical potential on lattice simulations.

Findings

Calculated pressure, energy density, and baryon density at finite T and .

Used reweighting technique to access non-zero chemical potentials.

Results obtained for N_f=2+1 dynamical staggered quarks on N_t=4 lattices.

Abstract

We calculate the pressure (p), the energy density (\epsilon) and the baryon density (n_B) of QCD at finite temperatures (T) and chemical potentials (\mu). The recently proposed overlap improving multi-parameter reweighting technique is used to determine observables at nonvanishing chemical potentials. Our results are obtained by studying n_f=2+1 dynamical staggered quarks with semi-realistic masses on N_t=4 lattices.