TY  - JOUR
A1  - Reichert, Tom Andre
A1  - Inghirami, Gabriele
A1  - Bleicher, Marcus
T1  - Flavor hierarchy at the chemical freeze-out from UrQMD
T2  - EPJ Web of Conferences
N2  - 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.
Y1  - 2022
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/71799
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-717995
SN  - 2100-014X
VL  - 259
IS  - 10005
PB  - EDP Sciences
CY  - Les Ulis
ER  -