Partonic effects on higher-order anisotropic flows in relativistic heavy-ion collisions Academic Article uri icon


  • Higher-order anisotropic flows 4 and 6 of charged hadrons in heavy-ion collisions at the Relativistic Heavy Ion Collider are studied in a multiphase transport model that has previously been used successfully for describing the elliptic flow 2 of identified hadrons in these collisions. We find that the same parton scattering cross section of about 10 mb used in explaining the measured 2 of charged hadrons can also reproduce the recent data on their 4 and 6 from Au+Au collisions at s=200A GeV. It is further found that 4 is a more sensitive probe of the initial partonic dynamics in these collisions than 2. Moreover, higher-order parton anisotropic flows are non-negligible and satisfy the scaling relation n,q(pT)2,qn/2(p T), which leads naturally to the observed similar scaling relation among hadron anisotropic flows when the coalescence model is used to describe hadron production from the partonic matter.

published proceedings

  • Physical Review C

author list (cited authors)

  • Chen, L., Ko, C. M., & Lin, Z.

citation count

  • 69

complete list of authors

  • Chen, Lie-Wen||Ko, CM||Lin, Zi-Wei

publication date

  • March 2004