Hadron multiplicities and chemical freeze-out conditions in proton-proton and nucleus-nucleus collisions

Abstract

New results of the NA61/SHINE Collaboration at the CERN SPS on mean hadron multiplicities in proton-proton (p+p) interactions are analyzed within the transport models and the hadron resonance gas (HRG) statistical model. The chemical freeze-out parameters in p+p interactions and central Pb+Pb (or Au+Au) collisions are found and compared with each other in the range of the center of mass energy of the nucleon pair $\sqrt{s_{NN}}=3.2-17.3$ GeV. The canonical ensemble formulation of the HRG model is used to describe mean hadron multiplicities in p+p interactions and the grand canonical ensemble in central Pb+Pb and Au+Au collisions. The chemical freeze-out temperatures in p+p interactions are found to be larger than the corresponding temperatures in central nucleus-nucleus collisions.

Some misprints are corrected in the text, as well as in Fig.1(f)

References in corpus (16)

• Thermal Hadronization and Hawking-Unruh Radiation in QCD
• Energy dependence of phi meson production in central Pb+Pb collisions at sqrt(s_nn) = 6 to 17 GeV
• Hadron yields and the phase diagram of strongly interacting matter
• Onset of deconfinement in nucleus-nucleus collisions: Review for pedestrians and experts
• Cancellation of the sigma meson in thermal models
• Melting Hadrons, Boiling Quarks
• First measurement of low momentum dielectrons radiated off cold nuclear matter
• Measurements of ${\pi }^{\pm }$, $K^{\pm }$ and proton yields from the surface of the T2K replica target for incoming 31 GeV/c protons with the NA61/SHINE spectrometer at the CERN SPS
• Scalar susceptibilities and four-quark condensates in the meson gas within Chiral Perturbation Theory
• Identified particle production and freeze-out properties in heavy-ion collisions at RHIC Beam Energy Scan program
• Recent Developments in the Study of Deconfinement in Nucleus-Nucleus Collisions
• Associate K^0 production in p+p collisions at 3.5 GeV: The role of Delta(1232)++
• System-size and energy dependence of particle momentum spectra: The UrQMD analysis of p+p and Pb+Pb collisions
• Mean transverse mass of hadrons in proton-proton reactions
• Mott-Anderson freeze-out and the strange matter "horn"
• K*(892)+ production in proton-proton collisions at E_beam = 3.5 GeV

Cited by in corpus (59)

• Decoding the phase structure of QCD via particle production at high energy
• The nonperturbative functional renormalization group and its applications
• The QCD crossover at finite chemical potential from lattice simulations
• The QCD phase structure at finite temperature and density
• QCD at finite temperature and chemical potential from Dyson-Schwinger equations
• van der Waals Interactions in Hadron Resonance Gas: From Nuclear Matter to Lattice QCD
• Thermal-FIST: A package for heavy-ion collisions and hadronic equation of state
• QCD phase structure from functional methods
• Chiral phase structure and critical end point in QCD
• Canonical statistical model analysis of p-p, p-Pb, and Pb-Pb collisions at the LHC
• Baryon number fluctuations in the QCD phase diagram from Dyson-Schwinger equations
• Production of deuterium, tritium, and ${}^3$He in central Pb+Pb collisions at 20A, 30A, 40A, 80A, and 158A GeV at the CERN SPS
• QCD at finite temperature and density within the fRG approach: An overview
• Bayesian location of the QCD critical point from a holographic perspective
• Far-from-equilibrium search for the QCD critical point
• Finite resonance widths influence the thermal-model description of hadron yields
• Beam Energy Dependence of Triton Production and Yield Ratio (${\mathrm{N}}_t\times {\mathrm{N}}_p/{\mathrm{N}}_d^2$) in Au+Au Collisions at RHIC
• Hadron yields, the chemical freeze-out and the QCD phase diagram
• Examination of the sensitivity of the thermal fits to heavy-ion hadron yield data to the modeling of the eigenvolume interactions
• Criticality in a Hadron Resonance Gas model with the van der Waals interaction
• Chemical freeze-out conditions and fluctuations of conserved charges in heavy-ion collisions within quantum van der Waals model
• Flavor-dependent eigenvolume interactions in a hadron resonance gas
• Critical point of nuclear matter and beam energy dependence of net proton number fluctuations
• Coalescence, the thermal model and multi-fragmentation: The energy and volume dependence of light nuclei production in heavy ion collisions
• Cumulants of multiple conserved charges and global conservation laws
• Feeddown contributions from unstable nuclei in relativistic heavy-ion collisions
• Interacting hadron resonance gas model in K-matrix formalism
• Statistical hadronization model for heavy-ion collisions in a few GeV energy regime
• Energy dependence of light hypernuclei production in heavy-ion collisions from a coalescence and statistical-thermal model perspective
• Fluctuations as a test of chemical non-equilibrium at the LHC
• Contrasting Freezeouts in Large Versus Small Systems
• Hadron yields and fluctuations at the CERN Super Proton Synchrotron: system size dependence from Pb+Pb to p+p collisions
• NNLO HTLpt predictions for the curvature of the QCD phase transition line
• Freezeout conditions in proton-proton collisions at the top RHIC and LHC energies
• Repulsive properties of hadrons in lattice QCD data and neutron stars
• Two-pion femtoscopic correlations in Be+Be collisions at $\sqrt{s_{\text{NN}}}=16.84$ GeV measured by the NA61/SHINE at CERN
• Production of Protons and Light Nuclei in Au+Au Collisions at $\sqrt{s_{\mathrm{NN}}}$ = 3 GeV with the STAR Detector
• Monte Carlo approach to the excluded-volume hadron resonance gas in grand canonical and canonical ensembles
• Identifying the presence of the critical end point in QCD phase diagram by higher order susceptibilities
• Statistical hadron-gas treatment of systems created in proton-proton interactions at CERN SPS
• Chemical freeze-out curve in heavy-ion collisions and the QCD critical point
• Estimation of the freeze-out parameters reachable in the AFTER@LHC project
• Measurements of ${\pi }^{-}$ production in ${}^7$Be+${}^9$Be collisions at beam momenta from 19$A$ to 150$A$GeV/$c$ in the NA61/SHINE experiment at the CERN SPS
• Measurements of ${\pi }^{\pm }$, $K^{\pm }$, $p$ and $\bar{p}$ spectra in ${}^{40}$Ar+${}^{45}$Sc collisions at 13$A$ to 150$A$ GeV/$c$
• Finite-volume effects in baryon number fluctuations around the QCD critical endpoint
• Covariant interacting Hadron-Resonance Gas model
• Locating the QCD critical point through contours of constant entropy density
• Overview of the QCD phase diagram -- Recent progress from the lattice
• Cluster production and the chemical freeze-out in expanding hot dense matter
• Energy dependent chemical potentials of light particles and quarks from yield ratios of antiparticles to particles in high energy collisions
• Spheroidal expansion and freeze-out geometry of heavy-ion collisions in the few-GeV energy regime
• Exploring the hadron resonance gas phase on the QCD phase diagram
• Constraining the hadronic spectrum and repulsive interactions in a hadron resonance gas via fluctuations of conserved charges
• New baryonic and mesonic observables from NA61/SHINE
• Hadron yields in central nucleus-nucleus collisions, the statistical hadronization model and the QCD phase diagram
• Investigating the cluster production mechanism with isospin triggering: Thermal models versus coalescence models
• Constraints on hadron resonance gas interactions via first-principles Lattice QCD susceptibilities
• A Data-Guided Coalescence Model for Light Nuclei and Hypernuclei Production in Relativistic Heavy-Ion Collisions at $\sqrt{s_{\mathrm{NN}}}=3$--200 GeV
• Toward a Unified Understanding of the Dense Matter Equation of State