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HK: Fachverband Physik der Hadronen und Kerne
HK 56: Heavy-Ion Collisions and QCD Phases XIV
HK 56.2: Vortrag
Mittwoch, 13. März 2024, 17:45–18:00, HBR 62: EG 05
Measurement of direct photons in Pb-Pb collisions in ALICE at √sNN = 5TeV — •Stephan Stiefelmaier — Physikalisches Institut Heidelberg
Direct photons are interesting since they allow to track the evolution of the Quark Gluon Plasma (QGP), the medium which is formed in heavy ion collisions at the LHC. I present the current state of their measurement with photon conversions in the 2018 Pb-Pb data sample using the latest reconstruction and calibration methods. Since eta mesons and neutral pions are responsible for a large part of the experimental background their measurement is also presented.