Possible interrelations among chemical freezeout conditions

Abstract

At thermal equilibrium, different chemical freezeout conditions have been proposed so far. They have an ultimate aim of proposing a universal description for the chemical freezeout parameters ($T_{ch}$ and ${\mu }_b$), which are to be extracted from the statistical fitting of different particle ratios measured at various collision energies with calculations from thermal models. A systematic comparison between these conditions is presented. The physical meaning of each of them and their sensitivity to the hadron mass cuts are discussed. Based on availability, some of them are compared with recent lattice calculations. We found that most of these conditions are thermodynamically equivalent, especially at small baryon chemical potential. We propose that further crucial consistency tests should be performed at low energies. The fireball thermodynamics is another way of guessing conditions describing the chemical freezeout parameters extracted from high-energy experiments. We endorse the possibility that the various chemical freezeout conditions should be interpreted as different aspects of one universal condition.

arXiv comment14 pages, 11 figures, accepted for publication in International Journal of Modern Physics E

References in corpus (44)

• The order of the quantum chromodynamics transition predicted by the standard model of particle physics
• The equation of state in (2+1)-flavor QCD
• The chiral and deconfinement aspects of the QCD transition
• New Forms of QCD Matter Discovered at RHIC
• Systematic Measurements of Identified Particle Spectra in pp, d+Au and Au+Au Collisions from STAR
• Chiral effective model with the Polyakov loop
• Hadron production in central nucleus-nucleus collisions at chemical freeze-out
• Comparison of Chemical Freeze-Out Criteria in Heavy-Ion Collisions
• The QCD thermal phase transition in the presence of a small chemical potential
• The Phase Structure of the Polyakov--Quark-Meson Model
• The QCD phase transition with physical-mass, chiral quarks
• Chemical and Thermal Freeze-Out Parameters from 1 to 200 A.GeV
• Unified Description of Freeze-Out Parameters in Relativistic Heavy Ion Collisions
• QCD equation of state at nonzero chemical potential: continuum results with physical quark masses at order mu^2
• Hadron Resonance Mass Spectrum and Lattice QCD Thermodynamics
• Thermodynamics at Non-Zero Baryon Number Density: A Comparison of Lattice and Hadron Resonance Gas Model Calculations
• Confronting LHC data with the statistical hadronization model
• Thermal Hadronization and Hawking-Unruh Radiation in QCD
• Hadron Formation in Relativistic Nuclear Collisions and the QCD Phase Diagram
• Particle Production in Heavy Ion Collisions
• Hadron yields and the phase diagram of strongly interacting matter
• The QCD phase diagram: A comparison of lattice and hadron resonance gas model calculations
• Report from NA49
• Particle Ratios, Equilibration, and the QCD Phase Boundary
• Transition from Baryonic to Mesonic Freeze-Out
• Equilibrium Statistical-Thermal Models in High-Energy Physics
• Description of Hot and Dense Hadron Gas Properties in a New Excluded-Volume model
• Heavy ion collisions and lattice QCD at finite baryon density
• Hadron-Resonance Gas at Freeze-out: Reminder on Importance of Repulsive Interactions
• Conditions for Confinement and Freeze-Out
• A universal description for the freezeout parameters in heavy-ion collisions
• Conditions driving chemical freeze-out
• Constant Trace Anomaly as a Universal Condition for the Chemical Freeze-Out
• An introduction to the Statistical Hadronization Model
• Polyakov SU(3) extended linear $\sigma$-model: Sixteen mesonic states in chiral phase-structure
• Polyakov linear SU(3) sigma model: features of higher order moments in dense and thermal hadronic medium
• Degree of Chemical Non-equilibrium in Central Au-Au Collisions at RHIC energies
• Chemical Freeze-Out and Higher Order Multiplicity Moments
• Chiral condensate and chemical freeze-out
• Chemical freeze-out in Hawking-Unruh radiation and quark-hadron transition
• Transport coefficients and quark-hadron phase transition(s) from PLSM in vanishing and finite magnetic field
• Thermal Description of Particle Production in Au-Au Collisions at STAR Energies
• Particle Ratios in Heavy-Ion Collisions
• Equation of State in Non-Zero Magnetic Field

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• Particle Ratios within EPOS, UrQMD and Thermal Models at AGS, SPS and RHIC Energies
• Strangeness chemical potential from the baryons relative to the kaons particle ratios
• Hadronization correspondence of Hawking-Unruh radiation from rotating and electrically charged black holes
• Universal descriptions of chemical freeze-out based on pressure and specific heat