Final state hadronic rescattering with UrQMD

  • In this talk we discuss the effects of the hadronic rescattering on final state observables in high energy nuclear collisions. We do so by employing the UrQMD transport model for a realistic description of the hadronic decoupling process. The rescattering of hadrons modifies every hadronic bulk observable. For example apparent multiplicity of resonances is suppressed as compared to a chemical equilibrium freeze-out model. Stable and unstable particles change their momentum distribution by more than 30% through rescattering. The hadronic rescattering also leads to a substantial decorrelation of the conserved charge distributions. These findings show that it is all but trivial to conclude from the final state observables on the properties of the system at an earlier time where it may have been in or close to local equilibrium.

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Metadaten
Author:Jan Steinheimer-Froschauer, Volodymyr Vovchenko, Jörg AichelinORCiDGND, Marcus BleicherORCiDGND, Horst StöckerORCiDGND
URN:urn:nbn:de:hebis:30:3-499381
DOI:https://doi.org/10.1051/epjconf/201817105003
ISSN:2100-014X
Parent Title (English):EPJ Web of Conferences
Publisher:EDP Sciences
Place of publication:Les Ulis
Document Type:Conference Proceeding
Language:English
Year of Completion:2018
Date of first Publication:2018/02/02
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Contributing Corporation:17th International Conference on Strangeness in Quark Matter (SQM 2017)
Release Date:2019/04/04
Volume:171
Issue:Article Number 05003
Page Number:8
HeBIS-PPN:448535874
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Sammlungen:Universitätspublikationen
Licence (German):License LogoCreative Commons - Namensnennung 4.0