Bochum 2018 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 23: Heavy Ion Collisions and QCD Phases IV
HK 23.2: Vortrag
Dienstag, 27. Februar 2018, 17:00–17:15, HZO 60
Reconstruction of Weak Decays in Au+Au Collisions at 1.23A GeV with HADES — •Simon Spies for the HADES collaboration — Goethe-Universität Frankfurt
We use a high statistic data sample of 7.3 × 109 recorded Au(1.23A GeV)+Au events to investigate Λ0 baryon and KS0 meson production below their free nucleon nucleon threshold. For the first time these hadrons have been investigated using a neural network to identify their weak decay topologys inside HADES. We highlight details of the analysis procedure such as event selection, particle identification and topological cuts on the decay kinematic before presenting and discussing the transverse energy spectra as well as production yields and their rapidity dependence. The results are confronted with phenomenological models.
This work has been supported by BMBF (05P15RFFCA), GSI and HIC for FAIR.