Higher moments of net-proton multiplicity distributions

2011/05/25 by X. Luo, Xiaofeng Luo, Bedangadas Mohanty +4 · 26 citations
Physics and Astronomy · #Baryon #Baryon number #Beam (structure) #Beam energy #Critical point (mathematics) #Hadron #High-Energy Particle Collisions Research #Lattice QCD #Multiplicity (mathematics) #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Proton #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #hep-ex #hep-lat #nucl-ex #nucl-th

paper · pdf · doi:10.1134/s1063778812060348

published in Physics of Atomic Nuclei 75(6), 676-678 (Pleiades Publishing) · 7 pages, 3 figures. CPOD 2010 Proceedings

arxiv created 2011/05/25 · openalex publication_date 2012/06/01 · arxiv updated 2012/06/05 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Higher moments of event-by-event net-proton multiplicity distributions have been applied to search for the QCD critical point. Model results are used to provide a baseline for this search. The measured moment products, κσ 2 and Sσ of net-proton distributions, which are directly connected to the thermodynamical baryon number susceptibility ratio in Lattice QCD and Hadron Resonance Gas (HRG) model, are compared to the transport and thermal model results. We argue that a non-monotonic dependence of κσ 2 and Sσ as a function of beam energy can be used to search for the QCD critical point.

Citations

• UrQMD-2.3 - Changes and Comparisons
• Energy dependence of high moments for net-proton distributions
• Non-Gaussian Fluctuations near the QCD Critical Point
• THERMINATOR: THERMal heavy-IoN generATOR
• Multiphase transport model for relativistic heavy ion collisions
• Experimental and theoretical challenges in the search for the quark–gluon plasma: The STAR Collaboration's critical assessment of the evidence from RHIC collisions

Cited by

• Factorial cumulants from global baryon number conservation
• Quark number fluctuations at finite temperature and finite chemical potential via the Dyson-Schwinger equation approach
• Net-baryon-, net-proton-, and net-charge kurtosis in heavy-ion collisions within a relativistic transport approach