Investigations of the linear and non-linear flow harmonics using the a multi-phase transport model

Abstract

Abstract The multi-phase transport model (AMPT) is used to study the effects of the parton-scattering cross-sections (σ pp) and hadronic re-scattering on the linear contributions to the flow harmonic v 4, the non-linear response coefficients, and the correlations between different order flow symmetry planes in Au + Au collisions at 200 GeV. The model results, which agree with current experimental measurements, indicate that the higher-order flow harmonics are sensitive to the σ pp variations. However, the non-linear response coefficients and the correlations between different order flow symmetry planes are σ pp independent. These results suggest that further detailed experimental measurements which span a broad range of collision systems and beam energies could serve as an additional constraint for the theoretical models’ calculations.