Hadron production in central nucleus-nucleus collisions at chemical freeze-out

By A. Andronic, P. Braun-Munzinger, J. Stachel. 2005

647 citations recorded by the source corpus.

Abstract We analyze the experimental hadron yield ratios for central nucleus–nucleus collisions in terms of thermal model calculations over a broad energy range, s N N = 2.7 – 200 GeV . The fits of the experimental data with the model calculations provide the thermal parameters, temperature and baryo-chemical potential at chemical freeze-out. We compare our results with the values obtained in other studies and also investigate more technical aspects such as a potential bias in the fits when fitting particle ratios or yields. Using parametrizations of the temperature and baryonic chemical potential as a function of energy, we compare the model calculations with data for a large variety of hadron yield ratios. We provide quantitative predictions for experiments at LHC energy, as well as for the low RHIC energy of 62.4 GeV. The relation of the determined parameters with the QCD phase boundary is discussed.

Subfields: Nuclear and High Energy Physics

View Paper: https://www.semanticscholar.org/paper/36b7143eb877d50211ccfebe27cebeb81052db5e

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Nuclear and High Energy Physics

Citations in the corpus

Multiplicity dependence of light-flavor hadron production in pp collisions at √s = 7 TeV (2019, methodology): “Alternative implementations of the statistical model are for instance adopted in the codes of the GSI-Heidelberg [11, 57] and SHARE [67] groups.”
Properties of hot and dense matter from relativistic heavy ion collisions (2015, neutral): “Energy dependence of the thermal model parameters T and μb [112] updated to include the most recent LHC results.”
Heavy quarkonium in extreme conditions (2019, neutral): “[332, 325]).”
Mapping the phases of quantum chromodynamics with beam energy scan (2019, methodology): “determined experimentally using the chemical freezeout systematics extracted from the measured particle yields [93].”
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.”
Exotic Hadrons from Heavy Ion Collisions (2017, methodology): “In the hydrodynamic approach, hadrons are produced through the statistical hadronization model [244].”