cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.141728.v1/t2
title: "Figure 2a" of "Kaon interferometric probes of space-time evolution in Au+Au collisions at sqrt(s_NN) = 200 GeV"

description: 3D Gaussian HBT radius parameters for charged kaon pairs as a function of $N_{part}^{1/3}$ measured for 0.3 &lt; $k_T$ &lt; 1.5 GeV/$c$ and $m_T$ measured for 0-30% centrality in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV.
description: Bose-Einstein correlations of charged kaons are measured for Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV and are compared to charged pion probes, which have a larger hadronic scattering cross section. Three dimensional Gaussian source radii are extracted, along with a one-dimensional kaon emission source function. The centrality dependences of the three Gaussian radii are well described by a single linear function if $N_{part}^{1/3}$ with zero intercept. Imaging analysis shows a deviation from a Gaussian tail at $r \ge$ 10 fm, although the bulk emission at lower radius is well-described by a Gaussian. The presence of a non-Gaussian tail in the kaon source reaffirms that the particle emission region in a heavy ion collision is extended, and that similar measurements with pions are not solely due to the decay of long-lived resonances.
DOI: 10.17182/hepdata.141728.v1/t3
title: "Figure 2b" of "Kaon interferometric probes of space-time evolution in Au+Au collisions at sqrt(s_NN) = 200 GeV"

description: 3D Gaussian HBT radius parameters for charged kaon pairs as a function of $N_{part}^{1/3}$ measured for 0.3 &lt; $k_T$ &lt; 1.5 GeV/$c$ and $m_T$ measured for 0-30% centrality in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV.
description: Bose-Einstein correlations of charged kaons are measured for Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV and are compared to charged pion probes, which have a larger hadronic scattering cross section. Three dimensional Gaussian source radii are extracted, along with a one-dimensional kaon emission source function. The centrality dependences of the three Gaussian radii are well described by a single linear function if $N_{part}^{1/3}$ with zero intercept. Imaging analysis shows a deviation from a Gaussian tail at $r \ge$ 10 fm, although the bulk emission at lower radius is well-described by a Gaussian. The presence of a non-Gaussian tail in the kaon source reaffirms that the particle emission region in a heavy ion collision is extended, and that similar measurements with pions are not solely due to the decay of long-lived resonances.
DOI: 10.17182/hepdata.141728.v1/t4
title: "Figure 3a-1" of "Kaon interferometric probes of space-time evolution in Au+Au collisions at sqrt(s_NN) = 200 GeV"

description: Measured $C_2$($q_{inv}$) and restored $C_2$($q_{inv}$) from imaged $S(r)$, compared with angle-averaged Gaussian $C_2$($q_{inv}$) for charged kaon pairs measured for 0.3 &lt; $k_T$ &lt; 0.9 GeV/$c$ at 0-30% central Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV.
description: Bose-Einstein correlations of charged kaons are measured for Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV and are compared to charged pion probes, which have a larger hadronic scattering cross section. Three dimensional Gaussian source radii are extracted, along with a one-dimensional kaon emission source function. The centrality dependences of the three Gaussian radii are well described by a single linear function if $N_{part}^{1/3}$ with zero intercept. Imaging analysis shows a deviation from a Gaussian tail at $r \ge$ 10 fm, although the bulk emission at lower radius is well-described by a Gaussian. The presence of a non-Gaussian tail in the kaon source reaffirms that the particle emission region in a heavy ion collision is extended, and that similar measurements with pions are not solely due to the decay of long-lived resonances.
DOI: 10.17182/hepdata.141728.v1/t5
title: "Figure 3a-2" of "Kaon interferometric probes of space-time evolution in Au+Au collisions at sqrt(s_NN) = 200 GeV"

description: Measured $C_2$($q_{inv}$) and restored $C_2$($q_{inv}$) from imaged $S(r)$, compared with angle-averaged Gaussian $C_2$($q_{inv}$) for charged kaon pairs measured for 0.3 &lt; $k_T$ &lt; 0.9 GeV/$c$ at 0-30% central Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV.
description: Bose-Einstein correlations of charged kaons are measured for Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV and are compared to charged pion probes, which have a larger hadronic scattering cross section. Three dimensional Gaussian source radii are extracted, along with a one-dimensional kaon emission source function. The centrality dependences of the three Gaussian radii are well described by a single linear function if $N_{part}^{1/3}$ with zero intercept. Imaging analysis shows a deviation from a Gaussian tail at $r \ge$ 10 fm, although the bulk emission at lower radius is well-described by a Gaussian. The presence of a non-Gaussian tail in the kaon source reaffirms that the particle emission region in a heavy ion collision is extended, and that similar measurements with pions are not solely due to the decay of long-lived resonances.
DOI: 10.17182/hepdata.141728.v1/t6
title: "Figure 3a-3" of "Kaon interferometric probes of space-time evolution in Au+Au collisions at sqrt(s_NN) = 200 GeV"

description: Measured $C_2$($q_{inv}$) and restored $C_2$($q_{inv}$) from imaged $S(r)$, compared with angle-averaged Gaussian $C_2$($q_{inv}$) for charged kaon pairs measured for 0.3 &lt; $k_T$ &lt; 0.9 GeV/$c$ at 0-30% central Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV.
description: Bose-Einstein correlations of charged kaons are measured for Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV and are compared to charged pion probes, which have a larger hadronic scattering cross section. Three dimensional Gaussian source radii are extracted, along with a one-dimensional kaon emission source function. The centrality dependences of the three Gaussian radii are well described by a single linear function if $N_{part}^{1/3}$ with zero intercept. Imaging analysis shows a deviation from a Gaussian tail at $r \ge$ 10 fm, although the bulk emission at lower radius is well-described by a Gaussian. The presence of a non-Gaussian tail in the kaon source reaffirms that the particle emission region in a heavy ion collision is extended, and that similar measurements with pions are not solely due to the decay of long-lived resonances.
DOI: 10.17182/hepdata.141728.v1/t7
title: "Figure 3b" of "Kaon interferometric probes of space-time evolution in Au+Au collisions at sqrt(s_NN) = 200 GeV"

description: Measured $C_2$($q_{inv}$) and restored $C_2$($q_{inv}$) from imaged $S(r)$, compared with angle-averaged Gaussian $C_2$($q_{inv}$) for charged kaon pairs measured for 0.3 &lt; $k_T$ &lt; 0.9 GeV/$c$ at 0-30% central Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV.
description: Bose-Einstein correlations of charged kaons are measured for Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV and are compared to charged pion probes, which have a larger hadronic scattering cross section. Three dimensional Gaussian source radii are extracted, along with a one-dimensional kaon emission source function. The centrality dependences of the three Gaussian radii are well described by a single linear function if $N_{part}^{1/3}$ with zero intercept. Imaging analysis shows a deviation from a Gaussian tail at $r \ge$ 10 fm, although the bulk emission at lower radius is well-described by a Gaussian. The presence of a non-Gaussian tail in the kaon source reaffirms that the particle emission region in a heavy ion collision is extended, and that similar measurements with pions are not solely due to the decay of long-lived resonances.
DOI: 10.17182/hepdata.141740.v1/t1
title: "Figure 2a" of "Deuteron and antideuteron production in Au + Au collisions at s(NN)**(1/2) = 200-GeV."

description: Corrected spectra for deuterons and anti-deuterons for different centralities are plotted vs $m_T$.
description: The production of deuterons and antideuterons in the transverse momentum range 1.1 &lt; $p_T$ &lt; GeV/$c$ at mid-rapidity in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV has been studied by the PHENIX experiment at RHIC. A coalescence analysis comparing the deuteron and antideuteron spectra with those of protons and antiprotons, has been performed. The coalescence probability is equal for both deuterons and antideuterons and increases as a function of $p_T$, which is consistent with an expanding collision zone. Comparing (anti)proton yields $\bar{p}$/$p$ = 0.73 $\pm$ 0.01, with (anti)deuteron yields: $\bar{d}$/$d$ = 0.47 $\pm$ 0.03, we estimate that $\bar{n}$/n = 0.64 $\pm$ 0.04.
DOI: 10.17182/hepdata.141740.v1/t2
title: "Figure 2b" of "Deuteron and antideuteron production in Au + Au collisions at s(NN)**(1/2) = 200-GeV."

description: Corrected spectra for deuterons and anti-deuterons for different centralities are plotted vs $m_T$.
description: The production of deuterons and antideuterons in the transverse momentum range 1.1 &lt; $p_T$ &lt; GeV/$c$ at mid-rapidity in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV has been studied by the PHENIX experiment at RHIC. A coalescence analysis comparing the deuteron and antideuteron spectra with those of protons and antiprotons, has been performed. The coalescence probability is equal for both deuterons and antideuterons and increases as a function of $p_T$, which is consistent with an expanding collision zone. Comparing (anti)proton yields $\bar{p}$/$p$ = 0.73 $\pm$ 0.01, with (anti)deuteron yields: $\bar{d}$/$d$ = 0.47 $\pm$ 0.03, we estimate that $\bar{n}$/n = 0.64 $\pm$ 0.04.
DOI: 10.17182/hepdata.141740.v1/t3
title: "Figure 3" of "Deuteron and antideuteron production in Au + Au collisions at s(NN)**(1/2) = 200-GeV."

description: Coalescence parameter $B_2$ vs $p_T$ for deuterons (left panel) and anti-deuterons (right panel). Grey bands indicate the systematic errors. Values are plotted at the "true" mean value of $p_T$ of each bin, the extent of which is indicated by the width of the grey bars along x-axis.
description: The production of deuterons and antideuterons in the transverse momentum range 1.1 &lt; $p_T$ &lt; GeV/$c$ at mid-rapidity in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV has been studied by the PHENIX experiment at RHIC. A coalescence analysis comparing the deuteron and antideuteron spectra with those of protons and antiprotons, has been performed. The coalescence probability is equal for both deuterons and antideuterons and increases as a function of $p_T$, which is consistent with an expanding collision zone. Comparing (anti)proton yields $\bar{p}$/$p$ = 0.73 $\pm$ 0.01, with (anti)deuteron yields: $\bar{d}$/$d$ = 0.47 $\pm$ 0.03, we estimate that $\bar{n}$/n = 0.64 $\pm$ 0.04.
DOI: 10.17182/hepdata.141740.v1/t4
title: "Figure 5" of "Deuteron and antideuteron production in Au + Au collisions at s(NN)**(1/2) = 200-GeV."

description: $\bar{d}/d$ ratio vs. $p_T$ for minimum bias data.
description: The production of deuterons and antideuterons in the transverse momentum range 1.1 &lt; $p_T$ &lt; GeV/$c$ at mid-rapidity in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV has been studied by the PHENIX experiment at RHIC. A coalescence analysis comparing the deuteron and antideuteron spectra with those of protons and antiprotons, has been performed. The coalescence probability is equal for both deuterons and antideuterons and increases as a function of $p_T$, which is consistent with an expanding collision zone. Comparing (anti)proton yields $\bar{p}$/$p$ = 0.73 $\pm$ 0.01, with (anti)deuteron yields: $\bar{d}$/$d$ = 0.47 $\pm$ 0.03, we estimate that $\bar{n}$/n = 0.64 $\pm$ 0.04.
DOI: 10.17182/hepdata.141741.v1/t1
title: "Figure 1" of "Saturation of azimuthal anisotropy in Au + Au collisions at s(NN)**(1/2) = 62-GeV - 200-GeV."

description: Assorted-$p_T$ correlation functions (0.65 &lt; $p_{T,ref}$ &lt; 2.5 GeV/$c$) for charged hadrons of 0.5 &lt; $p_T$ &lt; 0.7 GeV/$c$ and 1.0 &lt; $p_T$ &lt; 1.5 obtained in Au+Au collisions at $\sqrt{S_{NN}}$ = 62.4 GeV.
description: 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.
DOI: 10.17182/hepdata.141741.v1/t2
title: "Figure 2a" of "Saturation of azimuthal anisotropy in Au + Au collisions at s(NN)**(1/2) = 62-GeV - 200-GeV."

description: Differential anisotropy $v_2$($p_T$) for charged hadrons in Au + Au collisions at $\sqrt{s_{NN}}$ = 200 GeV obtained via cumulants method
description: 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.
DOI: 10.17182/hepdata.141741.v1/t3
title: "Figure 2b" of "Saturation of azimuthal anisotropy in Au + Au collisions at s(NN)**(1/2) = 62-GeV - 200-GeV."

description: Differential anisotropy $v_2$($p_T$) for charged hadrons in Au + Au collisions at $\sqrt{s_{NN}}$ = 200 GeV obtained via correlation function method
description: 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.
DOI: 10.17182/hepdata.141741.v1/t4
title: "Figure 2c" of "Saturation of azimuthal anisotropy in Au + Au collisions at s(NN)**(1/2) = 62-GeV - 200-GeV."

description: Differential anisotropy $v_2$($p_T$) for charged hadrons in Au + Au collisions at $\sqrt{s_{NN}}$ = 200 GeV obtained via reaction plane methods
description: 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.
DOI: 10.17182/hepdata.141741.v1/t5
title: "Figure 3a" of "Saturation of azimuthal anisotropy in Au + Au collisions at s(NN)**(1/2) = 62-GeV - 200-GeV."

description: Differential anisotropy as a function of centrality for $\sqrt{s_{NN}}$ = 62.4 GeV/$c$
description: 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.
DOI: 10.17182/hepdata.141741.v1/t6
title: "Figure 3b" of "Saturation of azimuthal anisotropy in Au + Au collisions at s(NN)**(1/2) = 62-GeV - 200-GeV."

description: Differential anisotropy as a function of centrality for $\sqrt{s_{NN}}$ = 130 GeV/$c$
description: 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.
DOI: 10.17182/hepdata.141741.v1/t7
title: "Figure 3c" of "Saturation of azimuthal anisotropy in Au + Au collisions at s(NN)**(1/2) = 62-GeV - 200-GeV."

description: Differential anisotropy as a function of centrality for $\sqrt{s_{NN}}$ = 200 GeV/$c$
description: 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.
DOI: 10.17182/hepdata.141741.v1/t8
title: "Figure 3d" of "Saturation of azimuthal anisotropy in Au + Au collisions at s(NN)**(1/2) = 62-GeV - 200-GeV."

description: Differential anisotropy $v_2$($p_T$) for centrality selection 13 - 26%.
description: 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.
DOI: 10.17182/hepdata.141741.v1/t10
title: "Figure 4" of "Saturation of azimuthal anisotropy in Au + Au collisions at s(NN)**(1/2) = 62-GeV - 200-GeV."

description: Differential $v_2$ vs. $\sqrt{S_{NN}}$ for charged hadrons in nucleus-nucleus collisions. Results are shown for the centrality cut of 13 - 26% and $p_T$ selections of 1.75 GeV/$c$ and 0.65 GeV/$c$.
description: 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.
DOI: 10.17182/hepdata.141741.v1/t9
title: "Figure 3e" of "Saturation of azimuthal anisotropy in Au + Au collisions at s(NN)**(1/2) = 62-GeV - 200-GeV."

description: Differential anisotropy $v_2$($p_T$) for centrality selection 13 - 26%.
description: 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.
DOI: 10.17182/hepdata.141742.v1/t1
title: "Figure 4" of "Measurements of elliptic and triangular flow in high-multiplicity $^{3}$He$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV"

description: Results for $v_2$ and $v_3$ as a function of $p_T$ for inclusive charged hadrons at midrapidity in 0-5% central $^3$He+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV.
description: We present the first measurement of elliptic ($v_2$) and triangular ($v_3$) flow in high-multiplicity $^3$He+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV. Two-particle correlations, where the particles have a large separation in pseudorapidity, are compared in $^3$He+Au and in $p$+$p$ collisions and indicate that collective effects dominate the second and third Fourier components for the correlations observed in the $^3$He+Au system. The collective behavior is quantified in terms of elliptic $v_2$ and triangular $v_3$ anisotropy coefficients measured with respect to their corresponding event planes. The $v_2$ values are comparable to those previously measured in $d$+Au collisions at the same nucleon-nucleon center-of-mass energy. Comparison with various theoretical predictions are made, including to models where the hot spots created by the impact of the three $^3$He nucleons on the Au nucleus expand hydrodynamically to generate the triangular flow. The agreement of these models with data may indicate the formation of low-viscosity quark-gluon plasma even in these small collision systems.