Measurements of charge-dependent azimuthal correlations with the ALICE detector at the LHC are reported for Pb-Pb collisions at √sNN = 2.76 TeV. Two- and three-particle charge-dependent azimuthal correlations in the pseudorapidity range |eta| < 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 understanding 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 / B., A., J., A., D., A., A., A., M., A., G., A.R., A., A., A., A., S., A.S., Z., A., N., A., A., A.M., S., A., S., A., A., A., D., A., B., A., R., A.M., A., A., A., A., et al.. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - ELETTRONICO. - 110:(2013), pp. 012301-1-012301-11. [10.1103/PhysRevLett.110.012301]

Charge separation relative to the reaction plane in Pb-Pb collisions at √s_NN = 2.76  TeV

BREGANT, MARCO;CAMERINI, Paolo;CONTIN, GIACOMO;FRAGIACOMO, ENRICO;LEA, RAMONA;MARGAGLIOTTI, GIACOMO;PIANO, STEFANO;RUI, RINALDO;VENARUZZO, MASSIMO;
2013-01-01

Abstract

Measurements of charge-dependent azimuthal correlations with the ALICE detector at the LHC are reported for Pb-Pb collisions at √sNN = 2.76 TeV. Two- and three-particle charge-dependent azimuthal correlations in the pseudorapidity range |eta| < 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 understanding the nature of the charge-dependent azimuthal correlations observed at RHIC and LHC energies.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11368/2648709
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