Particle production in heavy ion collisions

By P. Braun-Munzinger, J. Stachel, K. Redlich. 2003

296 citations recorded by the source corpus.

The status of thermal model descriptions of particle production in heavy ion collisions is presented. We discuss the formulation of statistical models with different implementation of the conservation laws and indicate their applicability in heavy ion and elementary particle collisions. We analyze experimental data on hadronic abundances obtained in ultrarelativistic heavy ion collisions, in a very broad energy range starting from RHIC/BNL ($\sqrt s=200$ A GeV), SPS/CERN ($\sqrt s\simeq 20$ A GeV) up to AGS/BNL ($\sqrt s\simeq 5$ A GeV) and SIS/GSI ($\sqrt s\simeq 2$ A GeV) to test equilibration of the fireball created in the collision. We argue that the statistical approach provides a very satisfactory description of experimental data covering this wide energy range. Any deviations of the model predictions from the data are indicated. We discuss the unified description of particle chemical freeze--out and the excitation functions of different particle species. At SPS and RHIC energy the relation of freeze--out parameters with the QCD phase boundary is analyzed. Furthermore, the application of the extended statistical model to quantitative understanding of open and hidden charm hadron yields is considered.

Subfields: Atomic and Molecular Physics, and Optics, Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/cdc0bb4f656537a8aa4931b74df6b7c27269d36f

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In Atomic and Molecular Physics, and Optics

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Citations in the corpus

Conformal hydrodynamics in Minkowski and de Sitter spacetimes (2010, background): “Chemical freeze-out, determined by thermal fits to hadron yields, occurs at Tchem ≈ 170 MeV (see for example [28]), whereas kinetic freeze-out, determined by thermal fits to the momentum dependence of particle yields of a fixed species, occurs at Tkin ≈ 110 MeV (see for example [29]).”
3ΛH and -3Λ-H production in Pb-Pb collisions at √sNN=2.76 TeV (2015, background): “The ﬁrst one is based on a coalescence model [11], while the second one is based on the assumption that all the particle species can be described using a statistical thermal model [12].”
Primordial gravitational waves, precisely: the role of thermodynamics in the Standard Model (2018, result): “{82]. The hadron resonance gas model has shown a good agreement with lattice QCD results [62,83] and successfully reproduced the experimental results observed in heavy ion collisions [see, e.g. Refs. [84,85] and references therein]. In this model, thermodynamic quantities are expressed as sums over ”
Formation of dense partonic matter in relativistic nucleus–nucleus collisions at RHIC: Experimental evaluation by the PHENIX Collaboration (2004, methodology): “[82] of Tchem = 177 ± 7 MeV, and Cleymans al.”
Gauge/String Duality, Hot QCD and Heavy Ion Collisions (2011, background): “However, the analysis performed in [202] indicates that the chiral susceptibility and the Polyakov loop susceptibility peak in the range of T = 150− 170 MeV.”
Properties of hot and dense matter from relativistic heavy ion collisions (2015, methodology): “Good fits of the measurements are achieved with the thermal model [117] with 3 parameters: Temperature T , baryochemical potential μB, and volume V , as shown in Fig.”