Münster 2017 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 27: Poster
HK 27.16: Poster
Tuesday, March 28, 2017, 16:45–18:45, F Foyer
Systematic Studies of the Peak Extraction of η Mesons 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. In the experiment, the measurement of neutral mesons (π0, η) in the calorimeters complements measurements of charged particles in the central barrel. In order to interpret the measurements of particle production in heavy-ion collisions, particle production in pp collisions is studied. Furthermore, particle production in pp provides information about the initial pQCD processes in the collision.
The PHOS detector, one of the electromagnetic calorimeters of the experiment, measures the position and energy of photons and therefore allows for the reconstruction of the η meson via its two-photon decay channel.
In this poster, the status of the analysis of η mesons produced in PHOS-triggered pp collisions at √s = 8 TeV with the ALICE PHOS will be presented. A systematic study of the peak-extraction method and its systematic uncertainties will be discussed in detail.
Supported by BMBF and the Helmholtz Association.