München 2019 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 54: Poster

HK 54.22: Poster

Donnerstag, 21. März 2019, 16:30–19:00, Foyer Theresanium

Monte Carlo studies of charged particle production in proton-proton collisions with ALICE — •Kristina Schmitt for the ALICE collaboration — Institut für Kernphysik, Goethe Universität, Frankfurt

The ALICE experiment at CERN-LHC is dedicated to study the properties of the so-called Quark-Gluon Plasma by investigating high-energy pp, p-Pb and Pb-Pb collisions. To obtain detector independent results, corrections facilitating Monte Carlo generators such as PYTHIA are indispensable. For the corrections it is crucial that the generators accurately describe the particle collisions. Apart from theoretical concepts, phenomenological models and input parameters are used in the simulations. These input parameters cannot be determined theoretically and need to be tuned to experimental measurements.

In this poster, we present a systematic analysis of transverse momentum (pT) distributions of charged particles for different center of mass energies generated with different tunes of the PYTHIA8 Monte Carlo generator. A comparison of PYTHIA8-tunes employing moments of the pT distributions per charged multiplicity interval will be discussed with particular focus on mapping physical aspects of the collisions to certain Monte Carlo tune parameters.

Supported by BMBF and the Helmholtz Association

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