Bonn 2020 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 56: Heavy-Ion Collisions and QCD Phases XII

HK 56.4: Vortrag

Freitag, 3. April 2020, 12:00–12:15, J-HS F

Measurement of neutral mesons in pp collisions at s = 13 TeV with ALICE — •Joshua König 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) that is believed to be produced in central AA collisions at high center-of-mass energies. Collective effects that were interpreted as an indication of the QGP in AA collisions have now also been observed in high multiplicity pp collisions. Measurements of the neutral meson (π0, η) production in pp collisions as a function of multiplicity and sphericity at the highest available energies can reveal detailed insights into these effects. Additionally, those measurements are the baseline for direct-photon analyses.

The reconstruction of neutral mesons via their two photon-decay channel can be realized in ALICE with several complementary methods, including the calorimeters and the TPC. In this talk the status of the π0 and η analysis in pp collisions at √s = 13 TeV with ALICE will be presented.

Supported by BMBF and the Helmholtz Association

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