Anisotropic distributions in a multiphase transport model

TY - JOUR

T1 - Anisotropic distributions in a multiphase transport model

AU - Zhou, You

AU - Xiao, Kai

AU - Feng, Zhao

AU - Liu, Feng

AU - Snellings, Raimond

PY - 2016/3/17

Y1 - 2016/3/17

N2 - With a multiphase transport (AMPT) model we investigate the relation between the magnitude, fluctuations, and correlations of the initial state spatial anisotropy En and the final state anisotropic flow coefficients vn in Au+Au collisions at sNN=200 GeV. It is found that the relative eccentricity fluctuations in AMPT account for the observed elliptic flow fluctuations, both are in agreement with the elliptic flow fluctuation measurements from the STAR collaboration. In addition, the studies based on two- and multiparticle correlations and event-by-event distributions of the anisotropies suggest that the elliptic-power function is a promising candidate of the underlying probability density function of the event-by-event distributions of En as well as vn. Furthermore, the correlations between different order symmetry planes and harmonics in the initial coordinate space and final state momentum space are presented. Nonzero values of these correlations have been observed. The comparison between our calculations and data will, in the future, shed new insight into the nature of the fluctuations of the quark-gluon plasma produced in heavy ion collisions.

AB - With a multiphase transport (AMPT) model we investigate the relation between the magnitude, fluctuations, and correlations of the initial state spatial anisotropy En and the final state anisotropic flow coefficients vn in Au+Au collisions at sNN=200 GeV. It is found that the relative eccentricity fluctuations in AMPT account for the observed elliptic flow fluctuations, both are in agreement with the elliptic flow fluctuation measurements from the STAR collaboration. In addition, the studies based on two- and multiparticle correlations and event-by-event distributions of the anisotropies suggest that the elliptic-power function is a promising candidate of the underlying probability density function of the event-by-event distributions of En as well as vn. Furthermore, the correlations between different order symmetry planes and harmonics in the initial coordinate space and final state momentum space are presented. Nonzero values of these correlations have been observed. The comparison between our calculations and data will, in the future, shed new insight into the nature of the fluctuations of the quark-gluon plasma produced in heavy ion collisions.

U2 - 10.1103/PhysRevC.93.034909

DO - 10.1103/PhysRevC.93.034909

M3 - Journal article

SN - 2469-9985

VL - C93

JO - Physical Review C

JF - Physical Review C

IS - 3

M1 - 034909

ER -