SMuK 2021 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 12: Heavy-Ion Collisions and QCD Phases II
HK 12.7: Vortrag
Dienstag, 31. August 2021, 18:15–18:30, H1
Charged Kaon and φ Reconstruction in Ag+Ag Collisions at √sNN = 2.5 GeV with HADES — •Marvin Kohls for the HADES collaboration — Goethe-Universität Frankfurt am Main
Heavy ion collisions in the few GeV energy regime probe similar temperatures and densities as created in neutron stars, which gives us a tool to probe the matter created in those macroscopic collisions in earthly laboratories [1].
In March 2019, the HADES collaboration recorded 13 · 109 Ag(1.58A GeV)+Ag events as part of the FAIR Phase-0 program. Within this talk we present the status of the reconstruction of K+, K− and φ and further discuss preliminary results.
Due to the fact, that these strange hadrons are produced at or below the free nucleon-nucleon production threshold, they are a good probe for in-medium effects with respect to their steep excitation function. Furthermore, comparing the production yields in pheripheral collisions to those in central collisions will provide additional information about the system size dependence of strangeness production.
The work has been supported by BMBF (05P19RFFCA), GSI and HIC for FAIR.
[1] Adamczewski-Musch, J., Arnold, O., Behnke, C. et al. Probing dense baryon-rich matter with virtual photons. Nat. Phys. 15, 1040*1045 (2019) doi:10.1038/s41567-019-0583-8