Higher moments of multiplicity fluctuations in a hadron-resonance gas with exact conservation laws

Abstract

Higher moments of multiplicity fluctuations of hadrons produced in central nucleus-nucleus collisions are studied within the hadron-resonance gas model in the canonical ensemble. Exact conservation of three charges, baryon number, electric charge, and strangeness, is enforced in the large volume limit. Moments up to the forth order of various particles are calculated at SPS, RHIC and LHC energies. The asymptotic fluctuations within a simplified model with only one conserved charge in the canonical ensemble are discussed where simple analytical expressions for moments of multiplicity distributions can be obtained. Moments products of net-proton, net-kaon, and net-charge distributions in Au + Au collisions at RHIC energies are calculated. The pseudo-rapidity coverage dependence of net-charge fluctuation is discussed.

10 pages, 3 figures, V2: figures updated

References in corpus (5)

• Probing freeze-out conditions in heavy ion collisions with moments of charge fluctuations
• Freeze-out conditions from net-proton and net-charge fluctuations at RHIC
• Multiplicity Fluctuations in Hadron-Resonance Gas
• Multiplicity fluctuations in relativistic nuclear collisions: statistical model versus experimental data
• Resonance decay effect on conserved number fluctuations in a hadron resonance gas model

Cited by in corpus (9)

• Cumulants and Correlation Functions of Net-proton, Proton and Antiproton Multiplicity Distributions in Au+Au Collisions at energies available at the BNL Relativistic Heavy Ion Collider
• Criticality in a Hadron Resonance Gas model with the van der Waals interaction
• Theory of Non-Interacting Fermions and Bosons in the Canonical Ensemble
• Interacting hadron resonance gas model in K-matrix formalism
• Non-critical fluctuations of (net) charges and (net) protons from iEBE-VISHNU hybrid model
• Isospin effect on baryon and charge fluctuations from the pNJL model
• Hydrodynamic results on multiplicity fluctuations in heavy-ion collisions
• Exploring the hadron resonance gas phase on the QCD phase diagram
• Universal descriptions of chemical freeze-out based on pressure and specific heat