Münster 2017 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 12: Heavy Ion Collisions and QCD Phases III
HK 12.3: Vortrag
Dienstag, 28. März 2017, 11:45–12:00, F 1
Transverse-momentum distributions of charged particles in p-Pb collisions with ALICE at the LHC — •Michael Habib 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
The inclusive charged particle spectra in proton-lead collisions is used to quantify initial state effects and provides a reference measurement for the studies of deconfined matter created in nucleus-nucleus collision.
The ALICE experiment at the LHC recorded p-Pb collisions at a center of mass energy of √sNN = 5.02 TeV in the years 2013 and 2016.
In this talk the transverse-momentum spectrum in p-Pb collisions at √sNN = 5.02 TeV measured with the ALICE detector and the corresponding nuclear modification factor RpPb , given by the ratio of the pT spectrum in proton-lead to that in proton-proton collisions scaled by the number of binary collisions, will be presented. The primary charged particle transverse-momentum ( pT ) distribution of the 2013 dataset was reanalyzed with improved analysis methods, leading to significant reduced systematic uncertainties. The ALICE pp reference spectrum at a collision energy of √s =5 has been used for RpPb factor calculations.