Erlangen 2026 – scientific programme

Parts | Days | Selection | Search | Updates | Downloads | Help

HK: Fachverband Physik der Hadronen und Kerne

HK 41: Heavy-Ion Collisions and QCD Phases VII

HK 41.3: Talk

Thursday, March 19, 2026, 17:00–17:15, PHIL A 602

Dielectron performance of the CBM experiment — •Adrian Meyer-Ahrens for the CBM collaboration — Institut für Kernphysik Münster, Münster, Deutschland

The Compressed Baryonic Matter (CBM) experiment is a fixed-target experiment currently under construction at FAIR in Darmstadt which will explore the QCD phase diagram at high net-baryon densities using heavy-ion beams in the kinetic energy range of 2-11 AGeV provided by the SIS100 accelerator complex. Dielectrons serve as versatile probes for properties of the hot and dense medium created in the collisions, since they do not interact strongly and escape the fireball undisturbed. Dielectron analysis depends on a reliable estimation of of the combinatorial background, dominated by π⁰ decays, misidentified hadrons as well as electrons from photon conversions in the target or detector material. In this talk, simulation results concerning the dielectron performance of CBM in Au-Au collisions will be presented, with a discussion of background estimation techniques and the extraction of the thermal signal.

This project has received funding from NRW Netzwerke (NW21-024-E).

Keywords: Dileptons; Compressed Baryonic Matter; Quark Gluon Plasma; Electromagnetic Probes; Combinatorial Background