Flavor hierarchy at the chemical freeze-out from UrQMD

  • We introduce a novel approach based on elastic and inelastic scattering rates to extract the hyper-surface of the chemical freeze-out from a hadronic transport simulation. We use the Ultra-relativistic Quantum Molecular Dynamics (UrQMD) model to extract the chemical freeze-out hyper-surface of pions and kaons in the energy range from Elab = 1:23A GeV to √SNN = 7.7 GeV. By employing a coarse-graining procedure, we can extract the local temperature T and baryo-chemical potential μB on the chemical freeze-out surface and compare them to results from statistical model analysis. We find good agreement between the pion chemical freeze-out line extracted from the simulation and the freeze-out line from the statistical model extracted from data. In addition the simulations also hint towards the existence of a flavor hierarchy similar to the one observed in recent lattice QCD calculations.

Download full text files

Export metadata

Additional Services

Share in Twitter Search Google Scholar
Author:Tom Andre ReichertORCiDGND, Gabriele InghiramiORCiDGND, Marcus BleicherORCiDGND
Parent Title (English):EPJ Web of Conferences
Publisher:EDP Sciences
Place of publication:Les Ulis
Document Type:Article
Date of Publication (online):2022/02/01
Date of first Publication:2022/02/01
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Contributing Corporation:SQM (19. : 2021 : Online)
Release Date:2023/02/01
Page Number:5
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoCreative Commons - Namensnennung 4.0