Azimuthal anisotropy of meson in U+U and Au+Au collisions at RHIC

15th International Conference on Strangeness in Quark Matter

Bairathi, Vipul^1

National Institute of Science Education and Research (NISER), Jatni

752050, India^1

关键词: Au+Au collisions;    Azimuthal anisotropy;    Elliptic flows;    Fourier coefficients;    Measurements of;    Plane methods;    Relativistic Heavy Ion Collider;    Transverse momenta;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/668/1/012039/pdf
DOI  :  10.1088/1742-6596/668/1/012039

来源: IOP

【 摘 要 】

The measurements of the azimuthal anisotropy of φ meson in the U+U and Au+Au collisions at the Relativistic Heavy-Ion Collider (RHIC) are reported. The centrality dependence of the Fourier coefficients v2, v3, v4and v5is presented for φ meson at midrapidity (|| NN= 193 and 200 GeV, respectively. The -sub event plane method is used with a n gap of 0.1 to suppress the non-flow effects. A strong centrality dependence is observed for the φ meson elliptic flow (v2), whereas no clear centrality dependence is observed for v3, v4and v5. Ratios of the Fourier coefficients, v3/v2and v4/v22as a function of transverse momentum (pT) are also presented. A systematic comparison of the Fourier coefficients for the two systems U+U and Au+Au is discussed.