Higher moments of net-proton multiplicity distributions

Journal Article · Fri Jun 15 00:00:00 EDT 2012 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778812060348· OSTI ID:22043709

Mohanty, Bedangadas ^[1]; Ritter, Hans Georg; Nu, Xu ^[2]

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1. Variable Energy Cyclotron Center (India)
2. Lawrence Berkeley National Laboratory (United States)

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, {kappa}{sigma}{sup 2} and S{sigma} 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 {kappa}{sigma}{sup 2} and S{sigma} as a function of beam energy can be used to search for the QCD critical point.

• OSTI ID: 22043709
• Journal Information: Physics of Atomic Nuclei, Vol. 75, Issue 6; Other Information: Copyright (c) 2012 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7788
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYON NUMBER
LATTICE FIELD THEORY
MULTIPLE PRODUCTION
MULTIPLICITY
PROTONS
QUANTUM CHROMODYNAMICS
THERMODYNAMIC MODEL