QCD at High Temperature : Results from Lattice Simulations with an Imaginary mu

TL;DR

This paper investigates the phase diagram of QCD at high temperatures using lattice simulations with an imaginary chemical potential, revealing a transition from strongly interacting behavior near the critical temperature to free field behavior at higher temperatures.

Contribution

It provides new lattice simulation results on QCD's phase diagram at high temperatures with an imaginary chemical potential, highlighting the transition in interaction strength.

Findings

QCD behaves as a free field at T ≥ 1.5 T_c

QCD is strongly interacting near T ≈ 1.1 T_c

Results support the understanding of QCD phase transition dynamics

Abstract

We summarize our results on the phase diagram of QCD with emphasis on the high temperature regime. For $T \ge 1.5 T_c$ the results are compatible with a free field behavior, while for $T \simeq 1.1 T_c$ this is not the case, clearly exposing the strongly interacting nature of QCD in this region