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SMuK 2023 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 6: Heavy-Ion Collisions and QCD Phases II

HK 6.3: Talk

Monday, March 20, 2023, 17:15–17:30, SCH/A315

Dielectron Analysis for the CBM Experiment — •Adrian Meyer-Ahrens for the CBM collaboration — Institut für Kernphysik WWU Münster, Münster, Deutschland

The Compressed Baryonic Matter (CBM) experiment is a fixed-target heavy-ion experiment currently under construction at FAIR in Darmstadt which will explore the QCD phase diagram at high net-baryon densities. Dielectrons serve as versatile probes for the properties of the hot and dense medium created in the collisions since they do not interact strongly and escape the fireball undisturbed. Dielectron physics relies on the efficient reduction of combinatorial background, dominated by misidentified hadrons as well as electrons from photon conversions in the target or detector material.

In this talk, simulation results concerning dielectron invariant mass spectra at CBM will be presented, focussing on background rejection using conventional cut-based selections as well as machine learning methods. This work is supported by BMBF grant 05P21PMFC1.

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