Evidence for divergent baryon-number susceptibility in QCD matter

Abstract

The baryon-number density formed in relativistic nuclear collisions, versus the chemical potential of the freeze-out states, is systematically studied on the basis of existing measurements. A remarkable power-law behaviour of the baryon-number susceptibility is found at the SPS, consistent with the existence of a QCD critical point at ${\mu }_{B,c}\simeq 214$ MeV, $T_c\simeq 155$ MeV. The equation of state in different asymptotic regimes of the critical region is also examined and confronted with freeze-out states in these experiments.

11 pages, 5 figures

References in corpus (5)

• Universal properties of bulk viscosity near the QCD phase transition
• Bulk viscosity in quasi particle models
• Critical Opalescence in Baryonic QCD Matter
• An Analytic Equation of State for Ising-like Models
• Application of the Gibbs equilibrium conditions to the QGP-Hadron transition curve

Cited by in corpus (5)

• Probing QCD critical fluctuations from intermittency analysis in relativistic heavy-ion collisions
• Intermittency analysis of proton numbers in heavy-ion collisions at energies available at the BNL Relativistic Heavy Ion Collider
• Overview of intermittency analysis in heavy-ion collisions
• Viscosity of a net-baryon fluid near the QCD critical point
• Critical exponents and transport properties near the QCD critical endpoint from the statistical bootstrap model