Erlangen 2026 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 41: Heavy-Ion Collisions and QCD Phases VII

HK 41.6: Talk

Thursday, March 19, 2026, 17:45–18:00, PHIL A 602

Dielectron reconstruction in the HADES Au+Au Beam Energy Scan — •Henrik Flörsheimer for the HADES collaboration — Technische Universität Darmstadt

Heavy-ion collisions at relativistic energies create a hot and dense medium whose microscopic properties can be studied using electromagnetic probes. Dileptons are especially valuable for this purpose, as they do not interact strongly with the surrounding matter, allowing them to carry undisturbed information about the QCD matter produced throughout the reaction.

The beam energy scan features Au+Au collisions at four energies, 200, 400, 600, and 800 AMeV, which allows for the investigation of energy-dependent properties of created QCD matter.

In this contribution, the key steps of the dielectron analysis will be outlined and the first results will be presented.

This work is supported by: BMFTR- 05P24RD6 and HGS-HIRe

Keywords: HADES; heavy-ion collisions; dileptons