Measurements of charge-dependent azimuthal correlations with the ALICE detector at the LHC are reported for Pb-Pb collisions at √s(NN=2.76 TeV. Two- and three-particle charge-dependent azimuthal correlations in the pseudorapidity range jj < 0:8 are presented as a function of the collision centrality, particle separation in pseudorapidity, and transverse momentum. A clear signal compatible with a charge- dependent separation relative to the reaction plane is observed, which shows little or no collision energy dependence when compared to measurements at RHIC energies. This provides a new insight for under- standing the nature of the charge-dependent azimuthal correlations observed at RHIC and LHC energies.
Charge separation relative to the reaction plane in Pb-Pb collisions at √s(NN)=2.76 TeV
DE CARO, ANNALISA;DE GRUTTOLA, DANIELE;DE PASQUALE, Salvatore;FUSCO GIRARD, Mario;PAGANO, PAOLA;VIRGILI, Tiziano;
2013-01-01
Abstract
Measurements of charge-dependent azimuthal correlations with the ALICE detector at the LHC are reported for Pb-Pb collisions at √s(NN=2.76 TeV. Two- and three-particle charge-dependent azimuthal correlations in the pseudorapidity range jj < 0:8 are presented as a function of the collision centrality, particle separation in pseudorapidity, and transverse momentum. A clear signal compatible with a charge- dependent separation relative to the reaction plane is observed, which shows little or no collision energy dependence when compared to measurements at RHIC energies. This provides a new insight for under- standing the nature of the charge-dependent azimuthal correlations observed at RHIC and LHC energies.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
