Thermodynamics and in-medium hadron properties from lattice QCD

TL;DR

This paper reviews non-perturbative lattice QCD studies of thermodynamics, phase diagram, and in-medium hadron properties, highlighting recent advances in understanding QCD at finite temperature and density.

Contribution

It provides a comprehensive overview of current lattice QCD results on bulk thermodynamics, phase transitions, and hadron modifications at finite temperature and density.

Findings

Knowledge of QCD phase diagram at non-zero baryon density

Temperature dependence of energy and pressure in QCD

Thermal modifications of hadron properties using maximum entropy method

Abstract

Non-perturbative studies of the thermodynamics of strongly interacting elementary particles within the context of lattice regularized QCD are being reviewed. After a short introduction into thermal QCD on the lattice we report on the present status of investigations of bulk properties. In particular, we discuss the present knowledge of the phase diagram including recent developments of QCD at non-zero baryon number density. We continue with the results obtained so far for the transition temperature as well as the temperature dependence of energy and pressure and comment on screening and the heavy quark free energies. A major section is devoted to the discussion of thermal modifications of hadron properties, taking special account of recent progress through the use of the maximum entropy method.