Aspects of the thermal phase transition of QCD with small chemical potential

TL;DR

This paper introduces a new method to study the thermal phase transition of QCD at small chemical potential, focusing on derivatives of the transition point and discussing the fermion determinant's complex phase.

Contribution

It presents a novel approach for analyzing the effects of small chemical potential on QCD phase transitions using derivatives of the transition point.

Findings

Computed derivatives of the phase transition point with respect to chemical potential

Commented on the complex phase of the fermion determinant in finite-density QCD

Provided insights into thermal properties of QCD at small chemical potential

Abstract

We propose a new method to investigate the thermal properties of QCD with a small chemical potential $(\mu)$. The derivatives of the phase transition point with respect to $\mu$ are computed for 2 flavors of p4-improved staggered fermions. We moreover comment on the complex phase of the fermion determinant in finite-density QCD.