System size and beam energy dependence of azimuthal anisotropy from PHENIX

Michael Issah

doi:10.1088/0954-3899/35/10/104103

System size and beam energy dependence of azimuthal anisotropy from PHENIX

Nuclear Experiment 2019-08-13 v1

Authors: Michael Issah

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

We present azimuthal anisotropy measurements in Au+Au and Cu+Cu collisions at $\sqrt{s_{NN}}$ = 62.4 and 200 GeV. Comparison between reaction plane and cumulant $v_2$ measurements in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV show that non-flow contributions, originating mainly from jets, influence the extracted $v_2$ for $p_T$ $\gtrsim$ 3.5 GeV/c. Number of constituent quark (NCQ) scaling of $v_2$ , when studied as a function of transverse kinetic energy $KE_T$ , is seen to hold for Au+Au collisions at $\sqrt{s_{NN}}$ = 62.4 and 200 GeV and for Cu+Cu collisions at $\sqrt{s_{NN}}$ = 200 GeV for $KE_{T}$ $\lesssim$ 1 GeV/c. Differential hexadecupole flow $v_4$ seems to exhibit scaling with integral $v_2$ for centrality $\le$ 40% as has been observed for differential $v_2$ .

Keywords

azimuthal anisotropy PHENIX Au+Au collisions Cu+Cu collisions non-flow contributions NCQ scaling transverse kinetic energy hexadecupole flow

Cite

@article{arxiv.0805.4039,
  title  = {System size and beam energy dependence of azimuthal anisotropy from PHENIX},
  author = {Michael Issah},
  journal= {arXiv preprint arXiv:0805.4039},
  year   = {2019}
}

Comments

4 pages, 3 figures, Proceedings of the QM2008 Conference, Jaipur, India February 4-10 2008

System size and beam energy dependence of azimuthal anisotropy from PHENIX

Abstract

Keywords

Cite

Comments

Related papers