Figure 1

The measured three-particle correlators for US and LS particle pairs (open data points) [5], the estimated three-particle correlation effects (thin lines) using inputs from measurements of two-particle angular correlations [8] and two-particle correlators [5], and the remaining three-particle correlator magnitudes (solid data points), that is, difference between open points and the thin lines. The left panel shows the three-particle correlators themselves versus centrality bin, and the right panel shows the number of participants ($N_{\mathrm{part}}$) scaled three-particle correlators versus $N_{\mathrm{part}}$.Reuse & Permissions

Figure 2

The $v_{{}_{2,\mathrm{SA}}}$ and $v_{{}_{2,\mathrm{BB}}}$ parameters (anisotropies of cluster population weighted by the number of particle pairs per cluster) required to reproduce the STAR three-particle correlator measurements [5] after removing cluster three-particle correlation effects calculated from two-particle angular correlation measurements [8] and two-particle correlator measurements [5]. The upper left panel assumes binary scaling for the number of clusters; the upper right panel assumes fixed cluster size of three particles; the lower left panel assumes that cluster size is a factor of 3 smaller than those in the upper left panel; and the lower right panel assumes a vanishing three-particle correlation from clusters. The particle elliptic flow measured by the event-plane method [11] is shown in the dashed curve, and that from fit to two-particle correlation measurement [8, 12] is shown in the solid curve.Reuse & Permissions

Figure 3

Hydrolike particle $v_{2,\mathrm{bkgd}}$ is needed, together with the estimated $v_{{}_{2,\mathrm{SA}}}$, to reproduce the fit $v_2\{$2d$\}$. The left panel corresponds to $v_{{}_{2,\mathrm{SA}}}$ in the upper left panel of Fig. 2 where the number of clusters is assumed to scale with binary collisions. The right panel corresponds to $v_{{}_{2,\mathrm{SA}}}$ in the lower right panel of Fig. 2 where the three-particle correlation from clusters is set to zero. The fraction of cluster particles is kept as same as that for the left panel.Reuse & Permissions