2010/01/23 by X. Luo, X. F. Luo, B. Mohanty +3 · 20 citations
Mathematics · Physics and Astronomy · #Baryon #Baryon number #Centrality #Classical mechanics #Collision #Critical point (mathematics) #Distribution function #High-Energy Particle Collisions Research #Lattice QCD #Mathematics #Moment (physics) #Multiplicity (mathematics) #Nuclear physics #Observable #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Quantum mechanics #Statistical physics #nucl-ex #nucl-th
paper · pdf · doi:10.1088/0954-3899/37/9/094061
published in Journal of Physics G Nuclear and Particle Physics 37(9), 094061 (IOP Publishing) · SQM2009 Proceeding, 6 pages, 5 figures
arxiv created 2010/01/23 · openalex publication_date 2010/08/11 · arxiv updated 2011/11/28 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
High moments of multiplicity distributions of conserved quantities are predicted to be sensitive to critical fluctuations. To understand the effect of the non-critical physics backgrounds on the proposed observable, we have studied various moments of net-proton distributions with the AMPT, Hijing, Therminator and UrQMD models, in which no QCD critical point physics is implemented. It is found that the centrality evolution of various moments of net-proton distributions can be uniformly described by a superposition of emission sources. In addition, in the absence of critical phenomena, some moment products of net-proton distributions, related to the baryon number susceptibilities in lattice QCD calculations, are predicted to be constant as a function of the collision centrality. We argue that a non-monotonic dependence of the moment products as a function of the beam energy may be used to locate the QCD critical point.