Are flow measurements at RHIC reliable?

15th International Conference on Strangeness in Quark Matter

Taranenko, Arkadiy^1 ; Vishnyakov, Vladislav^1

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

115409, Russia^1

关键词: Au+Au collisions;    Charged hadrons;    Collective flow;    Measurements of;    Particle production;    Relativistic heavy ion collision;    STAR experiment;    Star measurements;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/668/1/012081/pdf
DOI  :  10.1088/1742-6596/668/1/012081

来源: IOP

【 摘 要 】

The measurements of collective flow effects in particle production have provided invaluable insights on the transport properties of the strongly interacting matter produced in relativistic heavy-ion collisions at RHIC. The detailed comparison of flow measurements from PHENIX and STAR experiments at RHIC have been presented and discussed. For elliptic flow ν2of charged hadrons from Au+Au collisions at 200 GeV the two data sets overlap excellently for centralities > 20%, they increasingly diverge at small centralities, with a 30% difference between STAR an PHENIX in the 0-5% centrality bin. For ν3values the agreement is much worse and coming from the difference in STAR measurements. More investigations are needed to understand the reason for such differences.