Bonn 2020 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 44: Heavy-Ion Collisions and QCD Phases XI
HK 44.3: Talk
Thursday, April 2, 2020, 14:45–15:00, J-HS G
Charged Kaon and φ Reconstruction in Ag+Ag Collisions at √sNN = 2.5 GeV with HADES — •Marvin Kohls for the HADES collaboration — Institut für Kernphysik, Goethe Universität Frankfurt am Main, Deutschland
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 under 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 peripheral collisions to those in central collisions will provide a good test for strangeness enhancement effects.
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