DPG Phi
Verhandlungen
Verhandlungen
DPG

Münster 2017 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

HK: Fachverband Physik der Hadronen und Kerne

HK 30: Heavy Ion Collisions and QCD Phases VII

HK 30.4: Talk

Wednesday, March 29, 2017, 17:45–18:00, F 3

Freeze-out parameters of hadrons produced in Au+Au collisions at 1.23A GeV — •Heidi Schuldes for the HADES collaboration — Goethe-Universität Frankfurt

0pt The collective motion of final state hadrons reveals important information about both, the properties of the hot and dense medium created in a heavy-ion collision and the collision dynamics. The HADES collaboration has measured a comprehensive set of hadrons (p, d, π±, K±, K0, φ, Λ) produced in Au+Au collisions at 1.23A GeV.

The inverse slope parameters of the transverse mass spectra assuming a static thermal source show a mass dependent rise, indicating an additional radial expansion of the fireball. In this contribution we investigate the kinetic freeze-out conditions by applying simultaneous blast wave fits to the transverse mass spectra of hadrons and discuss to which extent the assumption of global freeze-out parameters can describe the observed kinematics. These results are compared to the chemical freeze-out parameters obtained by fitting the measured particle yields with a statistical hadronization model. Furthermore, the influence of resonance decays on the measured particle spectra will be addressed.

This work has been supported by BMBF (05P15RFFCA), GSI and HIC for FAIR.

100% | Mobile Layout | Deutsche Version | Contact/Imprint/Privacy
DPG-Physik > DPG-Verhandlungen > 2017 > Münster