Bochum 2018 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 2: Heavy Ion Collisions and QCD Phases I

HK 2.6: Vortrag

Montag, 26. Februar 2018, 15:30–15:45, HZO 60

Measurement of neutral mesons in p-Pb collisions at √s = 5.02 TeV with the ALICE-PHOS — •Andrea Hornung for the ALICE collaboration — Institut für Kernphysik, Goethe-Universität Frankfurt

ALICE, the dedicated heavy-ion experiment at the LHC, investigates the properties of the quark-gluon plasma (QGP). In collisions of high energy nuclei, energy loss effects on the production of hadrons at high transverse momenta have been observed. To disentangle effects on particle production caused by the QGP and concurrent initial state effects, in addition to collisions of heavy nuclei, collisions of protons and nuclei are studied. In the experiment, measurements of neutral mesons (η, π⁰) in the calorimeters complement measurements of charged particles in the central barrel.
The PHOS detector, one of the electromagnetic calorimeters of the experiment, measures the position and energy of photons and by such allows for the reconstruction of the π⁰ and the η meson via their two-photon decay channels. In this talk, the status of the measurement of π⁰ and η mesons in p-Pb collisions at √s = 5.02 TeV will be presented.
Supported by BMBF and the Helmholtz Association.