Frankfurt 2014 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 41: Schwerionenkollisionen und QCD Phasen
HK 41.2: Vortrag
Donnerstag, 20. März 2014, 14:30–14:45, HZ 6
Transverse momentum distributions of charged particles in p-Pb collisions with ALICE at the LHC — •Julius Gronefeld for the ALICE collaboration — Research Division and ExtreMe Matter Institute, GSI Helmholtzzentrum für Schwerionenforschung, Planckstr. 1, 64291 Darmstadt — Institut für Kernphysik, Technische Universität Darmstadt, Schlossgrabenstr. 9, 64289 Darmstadt
ALICE is dedicated to heavy ion collisions, with the aim of understanding the physics of the hot and dense medium produced in collisions of lead ions.
The LHC is not only capable of symmetric lead lead or proton proton collisions, but can also deliver collisions between protons and lead ions. Those events are investigated in order to disentangle cold nuclear matter effects from the influence of the hot and dense medium produced in Pb-Pb collisions.
A common way to investigate the mediums or cold nuclear matter effects is the determination of the nuclear modification factorgiven by the ratio between a given transverse momentum (pT) spectrum and a pp reference spectrum scaled by the number of binary collisons.
In the talk transverse momentum distributions measured with ALICE at a collision energy of √sNN = 5.02 TeV in proton lead collisions will be presented. Spectra and RpPb will be shown in dependence on multiplicity and rapidity range. In addition the findings will be compared to current models.