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.
| Author: | Tom Andre ReichertORCiDGND, Gabriele InghiramiORCiDGND, Marcus BleicherORCiDGND |
|---|---|
| URN: | urn:nbn:de:hebis:30:3-717995 |
| DOI: | https://doi.org/10.1051/epjconf/202225910005 |
| ISSN: | 2100-014X |
| Parent Title (English): | EPJ Web of Conferences |
| Publisher: | EDP Sciences |
| Place of publication: | Les Ulis |
| Document Type: | Article |
| Language: | English |
| 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 |
| Volume: | 259 |
| Issue: | 10005 |
| Page Number: | 5 |
| HeBIS-PPN: | 505758962 |
| Institutes: | Physik / Physik |
| Dewey Decimal Classification: | 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik |
| Sammlungen: | Universitätspublikationen |
| Licence (German): |  Creative Commons - Namensnennung 4.0 |
