3-Dimensional QCD Phase Diagrams for Strange Matter

TL;DR

This paper explores the differences in constraining charge versus isospin fractions in calculating the QCD deconfinement transition, presenting 3D phase diagrams relevant to heavy ion collisions and neutron star mergers.

Contribution

It introduces detailed relations among charge and isospin fractions and their chemical potentials, and constructs 3D QCD phase diagrams for matter out of weak equilibrium.

Findings

Relations among charge and isospin fractions derived

3D QCD phase diagrams constructed for out-of-equilibrium matter

Implications for heavy ion collisions and neutron star mergers discussed

Abstract

In this work, we examine in detail the difference between constraining the electric charge fraction and isospin fraction when calculating the deconfinement phase transition in the presence of net strangeness. We present relations among charge and isospin fractions and the corresponding chemical potentials and draw 3-dimensional QCD phase diagrams for matter out of weak equilibrium. Finally, we briefly discuss how our results can be applied to comparisons of matter created in heavy ion collisions and binary neutron star mergers.