Quark Matter 2018

Reconstruction of Weak Decays in Au+Au Collisions at 1.23A GeV with HADES

15 May 2018, 17:00

2h 40m

First floor and third floor (Palazzo del Casinò)

Poster High baryon density and astrophysics Poster Session

Speaker

Simon Spies (Johann-Wolfgang-Goethe Univ. (DE))

Description

We use a high statistic data sample of $7.3 \times 10^{9}$ recorded
Au(1.23A GeV)+Au events to investigate $\Lambda^{0}$ baryon and $K^{0}_{S}$ 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.

Presentation materials

QM2018_SimonSpies.pdf