Charge-dependent azimuthal correlations of secondary particles in heavy ion collisions

International Conference on Particle Physics and Astrophysics

Okorokov, V.^1 ; Parfenov, P.^1

National Research Nuclear University MEPhI, Moscow Engineering Physics Institute, Kashirskoe highway 31, Moscow

115409, Russia^1

关键词: Azimuthal correlations;    Collision energies;    Heavy ion collision;    Local fluctuations;    Nucleus-nucleus collision;    Quantum chromodynamics;    Secondary particles;    Strong interaction;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/675/2/022021/pdf
DOI  :  10.1088/1742-6596/675/2/022021

来源: IOP

【 摘 要 】

The P/CP symmetry breaking in quantum chromodynamics (QCD) could be realized via transitions between local fluctuations of gauge fields. Azimuthal correlations which characterize the asymmetry of the emitted charged particles with respect to the reaction plane in non-central nucleus-nucleus collisions are the promising tools for experimental study of local P/CP violation in the strong interactions. The preliminary estimations of correlators within the model of chiral magnetic effect are presented for types of nuclei and collision energies corresponded to RHIC and the LHC beams for two various nuclear densities, namely, for approach of the hard sphere and for the two-component Fermi model. Besides of the correlator estimations for the symmetric collisions, the preliminary results for magnetic field in asymmetric Cu + Au collisions are also shown.