English

Has the QCD critical point been observed at RHIC?

Nuclear Theory 2016-07-06 v1 Nuclear Experiment

Abstract

The experimental search for the location of the QCD critical point in the phase diagram is of primary importance. In a recent publication it is claimed that measurements at RHIC lead not only to the location of the critical point (μcep=95\mu_{cep}=95 MeV, Tcep=165T_{cep}=165 MeV) but also to the verification of its universality class (3d3d Ising system) by extracting the values of the critical exponents (γ=1.2\gamma=1.2, ν=0.66\nu=0.66). We argue that this claim is based on an erroneous treatment of scaling relations near the critical point. As a result, the correct interpretation of the measurements cannot be linked to the QCD critical point.

Keywords

Cite

@article{arxiv.1607.01326,
  title  = {Has the QCD critical point been observed at RHIC?},
  author = {N. G. Antoniou and N. Davis and F. K. Diakonos},
  journal= {arXiv preprint arXiv:1607.01326},
  year   = {2016}
}
R2 v1 2026-06-22T14:45:47.459Z