SMuK 2023 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 65: Heavy-Ion Collisions and QCD Phases XII
HK 65.4: Vortrag
Donnerstag, 23. März 2023, 16:30–16:45, SCH/A216
Measurement of photon and light neutral meson production in p–Pb collisions at √sNN = 5.02 TeV — •Stefanie Mrozinski for the ALICE Germany collaboration — Institut für Kernphysik, Goethe-Universität Frankfurt
The ALICE experiment at CERN-LHC is designed to study the characteristics of the hot and dense nuclear matter created in heavy ion collisions, the quark-gluon plasma (QGP). Since direct photons escape the medium unaffected during all collision states, they offer unique analysis opportunities. A necessary prerequisite for the direct photon measurement is the precise determination of the inclusive photon as well as the neutral meson production.
In ALICE, the measurements of photons is realized using electromagnetic calorimeters (EMCal or PHOS) and a photon conversion method (PCM). For the reconstruction of the mesons via their two-photon decay channel, photons from the same calorimeters or method as well as photons from a calorimeter and the PCM method can be used.
This talk will focus on the reconstruction of π0 and η meson spectra as well as the measurement of the inclusive photon yield in p–Pb collisions at √sNN = 5.02 TeV using the PCM-PHOS reconstruction method. The current status of the analyses will be presented.
Supported by BMBF and the Helmholtz Association.