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Bochum 2018 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 52: Poster

HK 52.13: Poster

Thursday, March 1, 2018, 16:30–18:45, Audimax Foyer

Protons and light nuclei in Au+Au Collisions at 1.23A GeV with HADES — •Melanie Szala for the HADES collaboration — Goethe Universität Frankfurt

As light hadrons have successfully been analysed, ongoing studies try to extend the set of identified particles towards light nuclei.

Light nuclei are expected to form at a later stage of the evolution and can probe the final freeze-out. The production of nuclei in heavy ion collisions is commonly discussed within two different scenarios: the thermal-statistical model and the coalescence model.

Furthermore higher order moments of conserved quantities (e.g. baryon number, charge, strangeness) are predicted to be sensitive to a first order phase transition and especially to the critical point of the QCD phase diagram. The HADES experiment started analysing the higher moments of proton number distributions but as the fully conserved quantity is the baryon number, further investigations will focus on including the light nuclei to the analysis.

In 2012 the HADES experiment at GSI Helmholtzzentrum für Schwerionenforschung in Darmstadt measured Au+Au collisions at √sNN = 2.41 GeV. In this contribution, we present results on protons and light nuclei.

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

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