Frankfurt 2014 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 19: Schwerionenkollisionen und QCD Phasen
HK 19.5: Vortrag
Dienstag, 18. März 2014, 15:15–15:30, HZ 6
Charge-dependent azimuthal correlation measurements in Pb-Pb collisions with ALICE — •Jaap Onderwaater 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
Parity violation in strong interactions is predicted to be observable in relativistic heavy-ion collisions. The occurrence of parity-odd domains may result in charge separation along a strong magnetic field created by moving ions – a phenomenon dubbed the chiral magnetic effect (CME). Sensitive experimental observables include two particle azimuthal correlations and correlation of particle pairs relative to the reaction plane. A challenge is to separate contributions to these correlations from background sources, which include local charge conservation and initial density fluctuations. Correlations for lead-lead collisions at sNN = √2.76 TeV measured with the ALICE detector are presented as a function of centrality, average and relative transverse momentum, and separation in pseudorapidity, providing additional constraints for models.