QCD equation of state matched to lattice data and exhibiting a critical point singularity
QCD equation of state matched to lattice data and exhibiting a critical point singularity
We construct a family of equations of state for QCD in the temperature range $30\phantom{\rule{0.16em}{0ex}}\mathrm{MeV}\ensuremath{\le}T\ensuremath{\le}800\phantom{\rule{0.16em}{0ex}}\mathrm{MeV}$ and in the chemical potential range $0\ensuremath{\le}{\ensuremath{\mu}}_{B}\ensuremath{\le}450\phantom{\rule{0.16em}{0ex}}\mathrm{MeV}$. These equations of state match available lattice QCD results up to $O({\ensuremath{\mu}}_{B}^{4})$ and in each of them we place a critical point in the three-dimensional (3D) Ising model …