Abstract (data abstract)

New measurements are presented for charged hadron azimuthal correlations at mid-rapidity in Au+Au collissions at $\sqrt{s_{NN}}$ = 62.4 and 200 GeV. They are compared to earlier measurements obtained at $\sqrt{s_{NN}}$ = 130 GeV and in Pb+Pb collisions at $\sqrt{s_{NN}}$ = 17.2 GeV. Sizeable anisotropies are observed with centrality and transverse momentum ($p_T$) dependence characteristic of elliptic flow ($v_2$). For a broad range of centralities, the observed magnitudes and trends of the differential anisotropy, $v_2$($p_T$), change very little over the collision energy range $\sqrt{s_{NN}}$ = 62-200 GeV, indicating saturation of the excitation function for $v_2$ at these energies. Sucha a saturation may be indicative of the dominance of a very soft equation of state for $\sqrt{s_{NN}}$ ~ 60-200 GeV.

Figure 1

Data from Fig. 1 of PRL 94, 232302 (2005)

10.17182/hepdata.141741.v1/t1

Assorted-$p_T$ correlation functions (0.65 < $p_{T,ref}$ < 2.5 GeV/$c$) for charged hadrons of 0.5 < $p_T$ < 0.7 GeV/$c$ and...
Figure 2a

Data from Fig. 2 of PRL PRL 94, 232302 (2005)

10.17182/hepdata.141741.v1/t2

Differential anisotropy $v_2$($p_T$) for charged hadrons in Au + Au collisions at $\sqrt{s_{NN}}$ = 200 GeV obtained via cumulants method
Figure 2b

Data from Fig. 2 of PRL PRL 94, 232302 (2005)

10.17182/hepdata.141741.v1/t3

Differential anisotropy $v_2$($p_T$) for charged hadrons in Au + Au collisions at $\sqrt{s_{NN}}$ = 200 GeV obtained via correlation function...
Figure 2c

Data from Fig. 2 of PRL PRL 94, 232302 (2005)

10.17182/hepdata.141741.v1/t4

Differential anisotropy $v_2$($p_T$) for charged hadrons in Au + Au collisions at $\sqrt{s_{NN}}$ = 200 GeV obtained via reaction plane...
Figure 3a

Data from Fig. 3 of PRL PRL 94, 232302 (2005)

10.17182/hepdata.141741.v1/t5

Differential anisotropy as a function of centrality for $\sqrt{s_{NN}}$ = 62.4 GeV/$c$
Figure 3b

Data from Fig. 3 of PRL PRL 94, 232302 (2005)

10.17182/hepdata.141741.v1/t6

Differential anisotropy as a function of centrality for $\sqrt{s_{NN}}$ = 130 GeV/$c$
Figure 3c

Data from Fig. 3 of PRL PRL 94, 232302 (2005)

10.17182/hepdata.141741.v1/t7

Differential anisotropy as a function of centrality for $\sqrt{s_{NN}}$ = 200 GeV/$c$
Figure 3d

Data from Fig. 3 of PRL PRL 94, 232302 (2005)

10.17182/hepdata.141741.v1/t8

Differential anisotropy $v_2$($p_T$) for centrality selection 13 - 26%.
Figure 3e

Data from Fig. 3 of PRL PRL 94, 232302 (2005)

10.17182/hepdata.141741.v1/t9

Differential anisotropy $v_2$($p_T$) for centrality selection 13 - 26%.
Figure 4

Data from Fig. 4 of PRL PRL 94, 232302 (2005)

10.17182/hepdata.141741.v1/t10

Differential $v_2$ vs. $\sqrt{S_{NN}}$ for charged hadrons in nucleus-nucleus collisions. Results are shown for the centrality cut of 13 -...

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