Heidelberg 2015 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 48: Poster

HK 48.24: Poster

Mittwoch, 25. März 2015, 17:00–19:00, C/Foyer

Charged particle production under EMCal trigger condition with ALICE — •Patrick Huhn — Institut für Kernphysik, Goethe-Universität Frankfurt

The ALICE experiment at the LHC is designed to study the properties of the Quark-Gluon-Plasma (QGP). The measured transverse momentum (p_T) distribution in heavy ion collisions can be compared to that measured in pp collisions in terms of the nuclear modification factor (R_AA). The minimum bias pp reference at √s=2.76 TeV and therefore R_AA in Pb-Pb collisions are currently limited in their p_T range to p_T=50 GeV/c. To extend the p_T distribution to higher p_T (p_T > 50 GeV/c), triggers can be used.
We present an analysis of the cross section of inclusive charged particles in pp collisions as a function of p_T with a selection on deposited energy in the electromagnetic calorimeter (EMCal). Results based on a Toy Monte Carlo simulation including realistic EMCal geometry and acceptance to evaluate trigger biases are presented.
Supported by BMBF and the Helmholtz Association.