Temperatures and chemical potentials at kinetic freeze-out in relativistic heavy ion collisions from coarse grained transport simulations

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F20%3A00346497" target="_blank" >RIV/68407700:21340/20:00346497 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1088/1361-6471/ab53f4" target="_blank" >https://doi.org/10.1088/1361-6471/ab53f4</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1361-6471/ab53f4" target="_blank" >10.1088/1361-6471/ab53f4</a>

Result language
angličtina
Original language name
Temperatures and chemical potentials at kinetic freeze-out in relativistic heavy ion collisions from coarse grained transport simulations
Original language description
Using the UrQMD/coarse graining approach we explore the kinetic freeze-out stage in central Au + Au collisions at various energies. These studies allow us to obtain detailed information on the thermodynamic properties (e.g. temperature and chemical potential) of the system during the kinetic decoupling stage. We explore five relevant collision energies in detail, ranging from root sNN = 2.4 GeV (GSI-SIS) to root sNN = 200 GeV (RHIC). By adopting a standard Hadron Resonance Gas equation of state, we determine the average temperature <T> and the average baryon chemical potential <μB> on the space-time hyper-surface of last interaction. The results highlight the nature of the kinetic freeze-out as a continuous process. This differential decoupling is an important aspect often missed when summarizing data as single points in the phase diagram as e.g. done in blast-wave fits. We compare the key properties of the system derived by using our approach with other models and we briefly review similarities and differences.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10301 - Atomic, molecular and chemical physics (physics of atoms and molecules including collision, interaction with radiation, magnetic resonances, Mössbauer effect)

Project
<a href="/en/project/GA17-04505S" target="_blank" >GA17-04505S: Aspects of strong interactions in extreme conditions</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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