cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.143260.v1/t1
title: "Figure 3a" of "Systematic study of charged-pion and kaon femtoscopy in Au$+$Au collisions at $\sqrt{s_{_{NN}}}$=200 GeV"

description: HBT parameters of positive pion pairs, shown as value $\pm$ statistical uncertainty [absolute value] $\pm$ systematic uncertainty [%] for the centrality bins shown in Fig. 3.
description: We present a systematic study of charged pion and kaon interferometry in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV. The kaon mean source radii are found to be larger than pion radii in the outward and longitudinal directions for the same transverse mass; this difference increases for more central collisions. The azimuthal-angle dependence of the radii was measured with respect to the second-order event plane and similar oscillations of the source radii were found for pions and kaons. Hydrodynamic models qualitatively describe the similar oscillations of the mean source radii for pions and kaons, but they do not fully describe the transverse-mass dependence of the oscillations.
DOI: 10.17182/hepdata.143260.v1/t2
title: "Figure 3b" of "Systematic study of charged-pion and kaon femtoscopy in Au$+$Au collisions at $\sqrt{s_{_{NN}}}$=200 GeV"

description: HBT parameters of negative pion pairs, shown as value $\pm$ statistical uncertainty [absolute value] $\pm$ systematic uncertainty [%] for the centrality bins shown in Fig. 3.
description: We present a systematic study of charged pion and kaon interferometry in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV. The kaon mean source radii are found to be larger than pion radii in the outward and longitudinal directions for the same transverse mass; this difference increases for more central collisions. The azimuthal-angle dependence of the radii was measured with respect to the second-order event plane and similar oscillations of the source radii were found for pions and kaons. Hydrodynamic models qualitatively describe the similar oscillations of the mean source radii for pions and kaons, but they do not fully describe the transverse-mass dependence of the oscillations.
DOI: 10.17182/hepdata.143260.v1/t3
title: "Figure 3c-1" of "Systematic study of charged-pion and kaon femtoscopy in Au$+$Au collisions at $\sqrt{s_{_{NN}}}$=200 GeV"

description: HBT parameters of charge-combined kaon pairs, shown as value $\pm$ statistical uncertainty [absolute value] $\pm$ systematic uncertainty [%] for the centrality bins shown in Fig. 3.
description: We present a systematic study of charged pion and kaon interferometry in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV. The kaon mean source radii are found to be larger than pion radii in the outward and longitudinal directions for the same transverse mass; this difference increases for more central collisions. The azimuthal-angle dependence of the radii was measured with respect to the second-order event plane and similar oscillations of the source radii were found for pions and kaons. Hydrodynamic models qualitatively describe the similar oscillations of the mean source radii for pions and kaons, but they do not fully describe the transverse-mass dependence of the oscillations.
DOI: 10.17182/hepdata.143260.v1/t4
title: "Figure 3c-2" of "Systematic study of charged-pion and kaon femtoscopy in Au$+$Au collisions at $\sqrt{s_{_{NN}}}$=200 GeV"

description: HBT parameters of charge-combined kaon pairs, shown as value $\pm$ statistical uncertainty [absolute value] $\pm$ systematic uncertainty [%] for the centrality bins shown in Fig. 3.
description: We present a systematic study of charged pion and kaon interferometry in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV. The kaon mean source radii are found to be larger than pion radii in the outward and longitudinal directions for the same transverse mass; this difference increases for more central collisions. The azimuthal-angle dependence of the radii was measured with respect to the second-order event plane and similar oscillations of the source radii were found for pions and kaons. Hydrodynamic models qualitatively describe the similar oscillations of the mean source radii for pions and kaons, but they do not fully describe the transverse-mass dependence of the oscillations.
DOI: 10.17182/hepdata.143260.v1/t5
title: "Figure 4a" of "Systematic study of charged-pion and kaon femtoscopy in Au$+$Au collisions at $\sqrt{s_{_{NN}}}$=200 GeV"

description: $R_o/R_s$ of positive pion pairs shown as value $\pm$ statistical uncertainty [absolute value] $\pm$ systematic uncertainty [%] for the centrality bins shown in Fig. 4.
description: We present a systematic study of charged pion and kaon interferometry in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV. The kaon mean source radii are found to be larger than pion radii in the outward and longitudinal directions for the same transverse mass; this difference increases for more central collisions. The azimuthal-angle dependence of the radii was measured with respect to the second-order event plane and similar oscillations of the source radii were found for pions and kaons. Hydrodynamic models qualitatively describe the similar oscillations of the mean source radii for pions and kaons, but they do not fully describe the transverse-mass dependence of the oscillations.
DOI: 10.17182/hepdata.143260.v1/t6
title: "Figure 4b" of "Systematic study of charged-pion and kaon femtoscopy in Au$+$Au collisions at $\sqrt{s_{_{NN}}}$=200 GeV"

description: $R_o/R_s$ of negative pion pairs shown as value $\pm$ statistical uncertainty [absolute value] $\pm$ systematic uncertainty [%] for the centrality bins shown in Fig. 4.
description: We present a systematic study of charged pion and kaon interferometry in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV. The kaon mean source radii are found to be larger than pion radii in the outward and longitudinal directions for the same transverse mass; this difference increases for more central collisions. The azimuthal-angle dependence of the radii was measured with respect to the second-order event plane and similar oscillations of the source radii were found for pions and kaons. Hydrodynamic models qualitatively describe the similar oscillations of the mean source radii for pions and kaons, but they do not fully describe the transverse-mass dependence of the oscillations.
DOI: 10.17182/hepdata.143260.v1/t7
title: "Figure 4c" of "Systematic study of charged-pion and kaon femtoscopy in Au$+$Au collisions at $\sqrt{s_{_{NN}}}$=200 GeV"

description: $R_o/R_s$ of charge-combined kaon pairs shown as value $\pm$ statistical uncertainty [absolute value] $\pm$ systematic uncertainty [%] for the centrality bins shown in Fig. 4.
description: We present a systematic study of charged pion and kaon interferometry in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV. The kaon mean source radii are found to be larger than pion radii in the outward and longitudinal directions for the same transverse mass; this difference increases for more central collisions. The azimuthal-angle dependence of the radii was measured with respect to the second-order event plane and similar oscillations of the source radii were found for pions and kaons. Hydrodynamic models qualitatively describe the similar oscillations of the mean source radii for pions and kaons, but they do not fully describe the transverse-mass dependence of the oscillations.
DOI: 10.17182/hepdata.143260.v1/t8
title: "Figure 8" of "Systematic study of charged-pion and kaon femtoscopy in Au$+$Au collisions at $\sqrt{s_{_{NN}}}$=200 GeV"

description: Azimuthal angle dependence of HBT radii of charged kaons, shown as value $\pm$ statistical uncertainty $\pm$ systematic uncertainty for the centrality bins shown in Fig. 8.
description: We present a systematic study of charged pion and kaon interferometry in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV. The kaon mean source radii are found to be larger than pion radii in the outward and longitudinal directions for the same transverse mass; this difference increases for more central collisions. The azimuthal-angle dependence of the radii was measured with respect to the second-order event plane and similar oscillations of the source radii were found for pions and kaons. Hydrodynamic models qualitatively describe the similar oscillations of the mean source radii for pions and kaons, but they do not fully describe the transverse-mass dependence of the oscillations.
DOI: 10.17182/hepdata.143260.v1/t9
title: "Figure 9" of "Systematic study of charged-pion and kaon femtoscopy in Au$+$Au collisions at $\sqrt{s_{_{NN}}}$=200 GeV"

description: Azimuthal angle dependence of HBT radii of charged pions, shown as value $\pm$ statistical uncertainty $\pm$ systematic uncertainty for the 0%–20% and 20%–60% centrality bins.
description: We present a systematic study of charged pion and kaon interferometry in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV. The kaon mean source radii are found to be larger than pion radii in the outward and longitudinal directions for the same transverse mass; this difference increases for more central collisions. The azimuthal-angle dependence of the radii was measured with respect to the second-order event plane and similar oscillations of the source radii were found for pions and kaons. Hydrodynamic models qualitatively describe the similar oscillations of the mean source radii for pions and kaons, but they do not fully describe the transverse-mass dependence of the oscillations.
DOI: 10.17182/hepdata.143260.v1/t10
title: "Figure 12a" of "Systematic study of charged-pion and kaon femtoscopy in Au$+$Au collisions at $\sqrt{s_{_{NN}}}$=200 GeV"

description: Oscillation amplitudes relative to the event plane for charged pions, shown as value $\pm$ statistical uncertainty $\pm$ systematic uncertainty for the 0%–20% and 20%–60% centrality bins.
description: We present a systematic study of charged pion and kaon interferometry in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV. The kaon mean source radii are found to be larger than pion radii in the outward and longitudinal directions for the same transverse mass; this difference increases for more central collisions. The azimuthal-angle dependence of the radii was measured with respect to the second-order event plane and similar oscillations of the source radii were found for pions and kaons. Hydrodynamic models qualitatively describe the similar oscillations of the mean source radii for pions and kaons, but they do not fully describe the transverse-mass dependence of the oscillations.
DOI: 10.17182/hepdata.143260.v1/t11
title: "Figure 12b" of "Systematic study of charged-pion and kaon femtoscopy in Au$+$Au collisions at $\sqrt{s_{_{NN}}}$=200 GeV"

description: Oscillation amplitudes relative to the event plane for charged kaons, shown as value $\pm$ statistical uncertainty $\pm$ systematic uncertainty for the 0%–20% and 20%–60% centrality bins.
description: We present a systematic study of charged pion and kaon interferometry in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV. The kaon mean source radii are found to be larger than pion radii in the outward and longitudinal directions for the same transverse mass; this difference increases for more central collisions. The azimuthal-angle dependence of the radii was measured with respect to the second-order event plane and similar oscillations of the source radii were found for pions and kaons. Hydrodynamic models qualitatively describe the similar oscillations of the mean source radii for pions and kaons, but they do not fully describe the transverse-mass dependence of the oscillations.
DOI: 10.17182/hepdata.143260.v1/t12
title: "Table III" of "Systematic study of charged-pion and kaon femtoscopy in Au$+$Au collisions at $\sqrt{s_{_{NN}}}$=200 GeV"

description: Summary of extracted parameters in the blast-wave model fit for two fitting conditions. The $T_f$ and $\rho_0$ parameters were obtained by fits to $p_T$ spectra, and the other parameters were obtained by a simultaneous fit to $v_2$ and the HBT radii.
description: We present a systematic study of charged pion and kaon interferometry in Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV. The kaon mean source radii are found to be larger than pion radii in the outward and longitudinal directions for the same transverse mass; this difference increases for more central collisions. The azimuthal-angle dependence of the radii was measured with respect to the second-order event plane and similar oscillations of the source radii were found for pions and kaons. Hydrodynamic models qualitatively describe the similar oscillations of the mean source radii for pions and kaons, but they do not fully describe the transverse-mass dependence of the oscillations.
DOI: 10.17182/hepdata.143306.v1/t1
title: "Figure 3a" of "Measurement of transverse-single-spin asymmetries for midrapidity and forward-rapidity production of hadrons in polarized p+p collisions at $\sqrt{s}=$200 and 62.4 GeV"

description: Neutral pion $A_N$ at $\sqrt{s} = 62.4$ GeV as a function of $x_F$ in pseudorapidity $3.1 &lt; |\eta| &lt; 3.5$, with statistical and systematic uncertainties.
description: Measurements of transverse-single-spin asymmetries ($A_N$) in $p$+$p$ collisions at $\sqrt{s}$ = 62.4 and 200 GeV with the PHENIX detector at RHIC are presented. At midrapidity, $A_N$ is measured for neutral pion and eta mesons reconstructed from diphoton decay, and, at forward rapidities, neutral pions are measured using both diphotons and electromagnetic clusters. The neutral-pion measurement of $A_N$ at midrapidity is consistent with zero with uncertainties a factor of 20 smaller than previous publications, which will lead to improved constraints on the gluon Sivers function. At higher rapidities, where the valence quark distributions are probed, the data exhibit sizable asymmetries. In comparison with previous measurements in this kinematic region, the new data extend the kinematic coverage in $\sqrt{s}$ and $p_T$ , and it is found that the asymmetries depend only weakly on $\sqrt{s}$. The origin of the forward $A_N$ is presently not understood quantitatively. The extended reach to higher $p_T$ probes the transition between transverse momentum dependent effects at low $p_T$ and multi-parton dynamics at high $p_T$.
DOI: 10.17182/hepdata.143306.v1/t2
title: "Figure 3b" of "Measurement of transverse-single-spin asymmetries for midrapidity and forward-rapidity production of hadrons in polarized p+p collisions at $\sqrt{s}=$200 and 62.4 GeV"

description: Neutral pion $A_N$ at $\sqrt{s} = 62.4$ GeV as a function of $x_F$ in pseudorapidity $3.5 &lt; |\eta| &lt; 3.8$, with statistical and systematic uncertainties.
description: Measurements of transverse-single-spin asymmetries ($A_N$) in $p$+$p$ collisions at $\sqrt{s}$ = 62.4 and 200 GeV with the PHENIX detector at RHIC are presented. At midrapidity, $A_N$ is measured for neutral pion and eta mesons reconstructed from diphoton decay, and, at forward rapidities, neutral pions are measured using both diphotons and electromagnetic clusters. The neutral-pion measurement of $A_N$ at midrapidity is consistent with zero with uncertainties a factor of 20 smaller than previous publications, which will lead to improved constraints on the gluon Sivers function. At higher rapidities, where the valence quark distributions are probed, the data exhibit sizable asymmetries. In comparison with previous measurements in this kinematic region, the new data extend the kinematic coverage in $\sqrt{s}$ and $p_T$ , and it is found that the asymmetries depend only weakly on $\sqrt{s}$. The origin of the forward $A_N$ is presently not understood quantitatively. The extended reach to higher $p_T$ probes the transition between transverse momentum dependent effects at low $p_T$ and multi-parton dynamics at high $p_T$.
DOI: 10.17182/hepdata.143306.v1/t3
title: "Figure 4" of "Measurement of transverse-single-spin asymmetries for midrapidity and forward-rapidity production of hadrons in polarized p+p collisions at $\sqrt{s}=$200 and 62.4 GeV"

description: Neutral pion $A_N$ at $\sqrt{s}$ = 62.4 GeV as function of transverse momentum $p_T$.
description: Measurements of transverse-single-spin asymmetries ($A_N$) in $p$+$p$ collisions at $\sqrt{s}$ = 62.4 and 200 GeV with the PHENIX detector at RHIC are presented. At midrapidity, $A_N$ is measured for neutral pion and eta mesons reconstructed from diphoton decay, and, at forward rapidities, neutral pions are measured using both diphotons and electromagnetic clusters. The neutral-pion measurement of $A_N$ at midrapidity is consistent with zero with uncertainties a factor of 20 smaller than previous publications, which will lead to improved constraints on the gluon Sivers function. At higher rapidities, where the valence quark distributions are probed, the data exhibit sizable asymmetries. In comparison with previous measurements in this kinematic region, the new data extend the kinematic coverage in $\sqrt{s}$ and $p_T$ , and it is found that the asymmetries depend only weakly on $\sqrt{s}$. The origin of the forward $A_N$ is presently not understood quantitatively. The extended reach to higher $p_T$ probes the transition between transverse momentum dependent effects at low $p_T$ and multi-parton dynamics at high $p_T$.
DOI: 10.17182/hepdata.143306.v1/t10
title: "Figure 11a-1" of "Measurement of transverse-single-spin asymmetries for midrapidity and forward-rapidity production of hadrons in polarized p+p collisions at $\sqrt{s}=$200 and 62.4 GeV"

description: Transverse single spin asymmetries $A_N$ of $\pi^0$ mesons at $\sqrt{s}$ = 200 GeV at midrapidity as function of $p_T$.
description: Measurements of transverse-single-spin asymmetries ($A_N$) in $p$+$p$ collisions at $\sqrt{s}$ = 62.4 and 200 GeV with the PHENIX detector at RHIC are presented. At midrapidity, $A_N$ is measured for neutral pion and eta mesons reconstructed from diphoton decay, and, at forward rapidities, neutral pions are measured using both diphotons and electromagnetic clusters. The neutral-pion measurement of $A_N$ at midrapidity is consistent with zero with uncertainties a factor of 20 smaller than previous publications, which will lead to improved constraints on the gluon Sivers function. At higher rapidities, where the valence quark distributions are probed, the data exhibit sizable asymmetries. In comparison with previous measurements in this kinematic region, the new data extend the kinematic coverage in $\sqrt{s}$ and $p_T$ , and it is found that the asymmetries depend only weakly on $\sqrt{s}$. The origin of the forward $A_N$ is presently not understood quantitatively. The extended reach to higher $p_T$ probes the transition between transverse momentum dependent effects at low $p_T$ and multi-parton dynamics at high $p_T$.
DOI: 10.17182/hepdata.143306.v1/t4
title: "Figure 5" of "Measurement of transverse-single-spin asymmetries for midrapidity and forward-rapidity production of hadrons in polarized p+p collisions at $\sqrt{s}=$200 and 62.4 GeV"

description: Comparison of neutral pion $A_N$ as function of $x_F$ from $\sqrt{s}$ = 62.4 GeV.
description: Measurements of transverse-single-spin asymmetries ($A_N$) in $p$+$p$ collisions at $\sqrt{s}$ = 62.4 and 200 GeV with the PHENIX detector at RHIC are presented. At midrapidity, $A_N$ is measured for neutral pion and eta mesons reconstructed from diphoton decay, and, at forward rapidities, neutral pions are measured using both diphotons and electromagnetic clusters. The neutral-pion measurement of $A_N$ at midrapidity is consistent with zero with uncertainties a factor of 20 smaller than previous publications, which will lead to improved constraints on the gluon Sivers function. At higher rapidities, where the valence quark distributions are probed, the data exhibit sizable asymmetries. In comparison with previous measurements in this kinematic region, the new data extend the kinematic coverage in $\sqrt{s}$ and $p_T$ , and it is found that the asymmetries depend only weakly on $\sqrt{s}$. The origin of the forward $A_N$ is presently not understood quantitatively. The extended reach to higher $p_T$ probes the transition between transverse momentum dependent effects at low $p_T$ and multi-parton dynamics at high $p_T$.
DOI: 10.17182/hepdata.143306.v1/t5
title: "Figure 7" of "Measurement of transverse-single-spin asymmetries for midrapidity and forward-rapidity production of hadrons in polarized p+p collisions at $\sqrt{s}=$200 and 62.4 GeV"

description: Fractional composition of electromagnetic clusters in the MPC at $\sqrt{s}$ = 200 GeV for $x_F$ &gt; 0.4.
description: Measurements of transverse-single-spin asymmetries ($A_N$) in $p$+$p$ collisions at $\sqrt{s}$ = 62.4 and 200 GeV with the PHENIX detector at RHIC are presented. At midrapidity, $A_N$ is measured for neutral pion and eta mesons reconstructed from diphoton decay, and, at forward rapidities, neutral pions are measured using both diphotons and electromagnetic clusters. The neutral-pion measurement of $A_N$ at midrapidity is consistent with zero with uncertainties a factor of 20 smaller than previous publications, which will lead to improved constraints on the gluon Sivers function. At higher rapidities, where the valence quark distributions are probed, the data exhibit sizable asymmetries. In comparison with previous measurements in this kinematic region, the new data extend the kinematic coverage in $\sqrt{s}$ and $p_T$ , and it is found that the asymmetries depend only weakly on $\sqrt{s}$. The origin of the forward $A_N$ is presently not understood quantitatively. The extended reach to higher $p_T$ probes the transition between transverse momentum dependent effects at low $p_T$ and multi-parton dynamics at high $p_T$.
DOI: 10.17182/hepdata.143306.v1/t6
title: "Figure 8a" of "Measurement of transverse-single-spin asymmetries for midrapidity and forward-rapidity production of hadrons in polarized p+p collisions at $\sqrt{s}=$200 and 62.4 GeV"

description: The $A_N$ of electromagnetic clusters at $\sqrt{s}$ = 200 GeV as a function of $x_F$ for $3.1 &lt; |\eta| &lt; 3.5$.
description: Measurements of transverse-single-spin asymmetries ($A_N$) in $p$+$p$ collisions at $\sqrt{s}$ = 62.4 and 200 GeV with the PHENIX detector at RHIC are presented. At midrapidity, $A_N$ is measured for neutral pion and eta mesons reconstructed from diphoton decay, and, at forward rapidities, neutral pions are measured using both diphotons and electromagnetic clusters. The neutral-pion measurement of $A_N$ at midrapidity is consistent with zero with uncertainties a factor of 20 smaller than previous publications, which will lead to improved constraints on the gluon Sivers function. At higher rapidities, where the valence quark distributions are probed, the data exhibit sizable asymmetries. In comparison with previous measurements in this kinematic region, the new data extend the kinematic coverage in $\sqrt{s}$ and $p_T$ , and it is found that the asymmetries depend only weakly on $\sqrt{s}$. The origin of the forward $A_N$ is presently not understood quantitatively. The extended reach to higher $p_T$ probes the transition between transverse momentum dependent effects at low $p_T$ and multi-parton dynamics at high $p_T$.