Charge separation relative to the reaction plane in Pb-Pb collisions at sNN=2.76TeV
Abstract
Measurements of charge-dependent azimuthal correlations with the ALICE detector at the LHC are reported for Pb-Pb collisions at sNN=2.76TeV. Two- and three-particle charge-dependent azimuthal correlations in the pseudorapidity range |η|<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.
- Publication:
-
Physical Review Letters
- Pub Date:
- January 2013
- DOI:
- 10.1103/PhysRevLett.110.012301
- arXiv:
- arXiv:1207.0900
- Bibcode:
- 2013PhRvL.110a2301A
- Keywords:
-
- 25.75.Ld;
- 11.30.Er;
- 11.30.Qc;
- 12.38.Aw;
- Collective flow;
- Charge conjugation parity time reversal and other discrete symmetries;
- Spontaneous and radiative symmetry breaking;
- General properties of QCD;
- Nuclear Experiment
- E-Print:
- 12 pages, 3 captioned figures, authors from page 2 to 6, published version, figures at http://aliceinfo.cern.ch/ArtSubmission/node/2866