cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.100591.v1/t1
title: "Figure 1-1" of "Identified particle distributions in p p and Au + Au collisions at s**(1/2) = 200-GeV."

description: invariant yield as function of transverse mass for $\pi^{\pm},K^{\pm}$ and inclusive $p$ and $\bar{p}$ at mid-rapidity ($|y|&lt;0.1$) for pp (bottom) and Au+Au events from $70-80\%$ (second bottom) to the $0-5\%$ centrality bin (top). Statistical and point-to-point systematic errors have been added in quadrature. Additional correlated systematic error due to uncertainty in the normalization is estimated to be $5\%$. Open circles are for positive particles (all proton spectra are scaled by 0.8), and closed triangles are for negative particles. The curves shown (Bose-Einstein fits for $\pi^-$ and blast-wave model fits for $K^-$ and $\bar{p}$) are explained in the text.
description: Transverse mass and rapidity distributions for charged pions, charged kaons, protons and antiprotons are reported for sqrt{s_NN}=200 GeV pp and Au+Au collisions at RHIC. The transverse mass distributions are rapidity independent within |y|&lt;0.5, consistent with a boost-invariant system in this rapidity interval. Spectral shapes and relative particle yields are similar in pp and peripheral Au+Au collisions and change smoothly to central Au+Au collisions. No centrality dependence was observed in the kaon and antiproton production rates relative to the pion production rate from medium-central to central collisions. Chemical and kinetic equilibrium model fits to our data reveal strong radial flow and relatively long duration from chemical to kinetic freeze-out in central Au+Au collisions. The chemical freeze-out temperature appears to be independent of initial conditions at RHIC energies.
DOI: 10.17182/hepdata.100593.v1/t8
title: "Figure 6d" of "Azimuthal di-hadron correlations in d+Au and Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV from STAR"

description: Away-side (|dphi| &gt; 0.9) ratios of the per-trigger associated yields in central Au+Au and d+Au collisions.
description: Yields, correlation shapes, and mean transverse momenta pT of charged particles associated with intermediate to high-pT trigger particles (2.5 &lt; pT &lt; 10 GeV/c) in d+Au and Au+Au collisions at sqrt(sNN) = 200 GeV are presented. For associated particles at higher pT &gt; 2.5 GeV\c, narrow correlation peaks are seen in d+Au and Au+Au, indicating that the main production mechanism is jet fragmentation. At lower associated particle pT &lt; 2 GeV/c, a large enhancement of the near- (dphi ~ 0) and away-side (dphi ~ pi) associated yields is found, together with a strong broadening of the away-side azimuthal distributions in Au+Au collisions compared to d+Au measurements, suggesting that other particle production mechanisms play a role. This is further supported by the observed significant softening of the away-side associated particle yield distribution at dphi ~ pi in central Au+Au collisions.
DOI: 10.17182/hepdata.100593.v1/t9
title: "Figure 8" of "Azimuthal di-hadron correlations in d+Au and Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV from STAR"

description: Mean transverse momentum of associated particles with 0.25 &lt; pT,assoc &lt; 4.0 GeV/c, for four different centrality selections.
description: Yields, correlation shapes, and mean transverse momenta pT of charged particles associated with intermediate to high-pT trigger particles (2.5 &lt; pT &lt; 10 GeV/c) in d+Au and Au+Au collisions at sqrt(sNN) = 200 GeV are presented. For associated particles at higher pT &gt; 2.5 GeV\c, narrow correlation peaks are seen in d+Au and Au+Au, indicating that the main production mechanism is jet fragmentation. At lower associated particle pT &lt; 2 GeV/c, a large enhancement of the near- (dphi ~ 0) and away-side (dphi ~ pi) associated yields is found, together with a strong broadening of the away-side azimuthal distributions in Au+Au collisions compared to d+Au measurements, suggesting that other particle production mechanisms play a role. This is further supported by the observed significant softening of the away-side associated particle yield distribution at dphi ~ pi in central Au+Au collisions.
DOI: 10.17182/hepdata.100591.v1/t4
title: "Figure 2-1" of "Identified particle distributions in p p and Au + Au collisions at s**(1/2) = 200-GeV."

description: Rapidity distributions of the fiducial yields and integrated $$ for the $0-5\%$ and $70-80\%$ Au+Au collisions. Pion yields are scaled down by a factor of 5. Errors shown are those propagated from Fig.1. Systematic errors on the fiducial yields are $5\%$; those on $$ are $5\%$ for pions and $5-10\%$ for kaons and antiprotons.
description: Transverse mass and rapidity distributions for charged pions, charged kaons, protons and antiprotons are reported for sqrt{s_NN}=200 GeV pp and Au+Au collisions at RHIC. The transverse mass distributions are rapidity independent within |y|&lt;0.5, consistent with a boost-invariant system in this rapidity interval. Spectral shapes and relative particle yields are similar in pp and peripheral Au+Au collisions and change smoothly to central Au+Au collisions. No centrality dependence was observed in the kaon and antiproton production rates relative to the pion production rate from medium-central to central collisions. Chemical and kinetic equilibrium model fits to our data reveal strong radial flow and relatively long duration from chemical to kinetic freeze-out in central Au+Au collisions. The chemical freeze-out temperature appears to be independent of initial conditions at RHIC energies.
DOI: 10.17182/hepdata.100591.v1/t15
title: "Figure 4-2" of "Identified particle distributions in p p and Au + Au collisions at s**(1/2) = 200-GeV."

description: $\frac{(dN/dy)_{\pi}}{S}$ (stars), $T_{ch}$ (circles) and $T_{kin}$ (triangles) and (b) $&lt;\beta&gt;$ as a function of the charged hadron multiplicity. Errors are systematic.
description: Transverse mass and rapidity distributions for charged pions, charged kaons, protons and antiprotons are reported for sqrt{s_NN}=200 GeV pp and Au+Au collisions at RHIC. The transverse mass distributions are rapidity independent within |y|&lt;0.5, consistent with a boost-invariant system in this rapidity interval. Spectral shapes and relative particle yields are similar in pp and peripheral Au+Au collisions and change smoothly to central Au+Au collisions. No centrality dependence was observed in the kaon and antiproton production rates relative to the pion production rate from medium-central to central collisions. Chemical and kinetic equilibrium model fits to our data reveal strong radial flow and relatively long duration from chemical to kinetic freeze-out in central Au+Au collisions. The chemical freeze-out temperature appears to be independent of initial conditions at RHIC energies.
DOI: 10.17182/hepdata.100591.v1/t9
title: "Figure 3-3-2" of "Identified particle distributions in p p and Au + Au collisions at s**(1/2) = 200-GeV."

description: Mean transverse momentum of negative particles and (b) $K^-/\pi^-$ and $\bar{p}/\pi^-$ ratios as function of the charged hadron multiplicity. Open symbols are for pp, and filled ones are for Au+Au data. (c) Mid-rapidity $K^-/\pi^-$ ratio as function of $\frac{(dN/dy)_{\pi}}{S}$. Systematic errors are shown for STAR data, and statistical errors for other data.
description: Transverse mass and rapidity distributions for charged pions, charged kaons, protons and antiprotons are reported for sqrt{s_NN}=200 GeV pp and Au+Au collisions at RHIC. The transverse mass distributions are rapidity independent within |y|&lt;0.5, consistent with a boost-invariant system in this rapidity interval. Spectral shapes and relative particle yields are similar in pp and peripheral Au+Au collisions and change smoothly to central Au+Au collisions. No centrality dependence was observed in the kaon and antiproton production rates relative to the pion production rate from medium-central to central collisions. Chemical and kinetic equilibrium model fits to our data reveal strong radial flow and relatively long duration from chemical to kinetic freeze-out in central Au+Au collisions. The chemical freeze-out temperature appears to be independent of initial conditions at RHIC energies.
DOI: 10.17182/hepdata.100593.v1/t1
title: "Figure 2 and Figure 10 - part 1" of "Azimuthal di-hadron correlations in d+Au and Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV from STAR"

description: Background-subtracted azimuthal angle difference distributions for associated particles with pT between 1.0 and 2.5 GeV/c and for different ranges of trigger particle pT , ranging from 2.5 − 3.0 GeV/c to 3.0 − 4.0 GeV/c. Results are shown for Au+Au collisions with different centrality and d+Au reference results. The rapidity range is |eta| &lt; 1 and as a result the rapidity-difference |deta| &lt; 2. Results are shown for a restricted acceptance of |deta| &lt; 0.7, using tracks within |eta| &lt; 1. The upper and lower range of the systematic uncertainty due to the v2 modulation of the subtracted background is indicated as well.
description: Yields, correlation shapes, and mean transverse momenta pT of charged particles associated with intermediate to high-pT trigger particles (2.5 &lt; pT &lt; 10 GeV/c) in d+Au and Au+Au collisions at sqrt(sNN) = 200 GeV are presented. For associated particles at higher pT &gt; 2.5 GeV\c, narrow correlation peaks are seen in d+Au and Au+Au, indicating that the main production mechanism is jet fragmentation. At lower associated particle pT &lt; 2 GeV/c, a large enhancement of the near- (dphi ~ 0) and away-side (dphi ~ pi) associated yields is found, together with a strong broadening of the away-side azimuthal distributions in Au+Au collisions compared to d+Au measurements, suggesting that other particle production mechanisms play a role. This is further supported by the observed significant softening of the away-side associated particle yield distribution at dphi ~ pi in central Au+Au collisions.
DOI: 10.17182/hepdata.100593.v1/t10
title: "Figure 9" of "Azimuthal di-hadron correlations in d+Au and Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV from STAR"

description: Mean transverse momentum (DeltaPhi) of associated hadrons in the range 0.25 &lt; pT_assoc &lt; 4.0 GeV/c in the core (|DeltaPhi − pi| &lt; pi/6) and cone (pi/6 &lt; |DeltaPhi − pi| &lt; pi/2) azimuthal regions for 3 &lt; pT_trig &lt; 4 GeV/c and 4 &lt; pT_trig &lt; 6 GeV/c as a function of number of participants. The inclusive in the same pT range for events with a trigger hadron is also indicated.
description: Yields, correlation shapes, and mean transverse momenta pT of charged particles associated with intermediate to high-pT trigger particles (2.5 &lt; pT &lt; 10 GeV/c) in d+Au and Au+Au collisions at sqrt(sNN) = 200 GeV are presented. For associated particles at higher pT &gt; 2.5 GeV\c, narrow correlation peaks are seen in d+Au and Au+Au, indicating that the main production mechanism is jet fragmentation. At lower associated particle pT &lt; 2 GeV/c, a large enhancement of the near- (dphi ~ 0) and away-side (dphi ~ pi) associated yields is found, together with a strong broadening of the away-side azimuthal distributions in Au+Au collisions compared to d+Au measurements, suggesting that other particle production mechanisms play a role. This is further supported by the observed significant softening of the away-side associated particle yield distribution at dphi ~ pi in central Au+Au collisions.
DOI: 10.17182/hepdata.100593.v1/t4
title: "Figure 5" of "Azimuthal di-hadron correlations in d+Au and Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV from STAR"

description: The angle Delta between the away-side peaks and DeltaPhi = pi for 4 &lt; pT_trig &lt; 6 GeV/c in 0-12% central Au+Au collisions as a function of pT_assoc . Three different parametrisations of the away-side peak shape were used. The errors are statistical errors from the fit.
description: Yields, correlation shapes, and mean transverse momenta pT of charged particles associated with intermediate to high-pT trigger particles (2.5 &lt; pT &lt; 10 GeV/c) in d+Au and Au+Au collisions at sqrt(sNN) = 200 GeV are presented. For associated particles at higher pT &gt; 2.5 GeV\c, narrow correlation peaks are seen in d+Au and Au+Au, indicating that the main production mechanism is jet fragmentation. At lower associated particle pT &lt; 2 GeV/c, a large enhancement of the near- (dphi ~ 0) and away-side (dphi ~ pi) associated yields is found, together with a strong broadening of the away-side azimuthal distributions in Au+Au collisions compared to d+Au measurements, suggesting that other particle production mechanisms play a role. This is further supported by the observed significant softening of the away-side associated particle yield distribution at dphi ~ pi in central Au+Au collisions.
DOI: 10.17182/hepdata.100593.v1/t6
title: "Figure 6b" of "Azimuthal di-hadron correlations in d+Au and Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV from STAR"

description: Near-side (|dphi| &lt; 0.9) ratios of the per-trigger associated yields in central Au+Au and d+Au collisions.
description: Yields, correlation shapes, and mean transverse momenta pT of charged particles associated with intermediate to high-pT trigger particles (2.5 &lt; pT &lt; 10 GeV/c) in d+Au and Au+Au collisions at sqrt(sNN) = 200 GeV are presented. For associated particles at higher pT &gt; 2.5 GeV\c, narrow correlation peaks are seen in d+Au and Au+Au, indicating that the main production mechanism is jet fragmentation. At lower associated particle pT &lt; 2 GeV/c, a large enhancement of the near- (dphi ~ 0) and away-side (dphi ~ pi) associated yields is found, together with a strong broadening of the away-side azimuthal distributions in Au+Au collisions compared to d+Au measurements, suggesting that other particle production mechanisms play a role. This is further supported by the observed significant softening of the away-side associated particle yield distribution at dphi ~ pi in central Au+Au collisions.
DOI: 10.17182/hepdata.100593.v1/t7
title: "Figure 6c" of "Azimuthal di-hadron correlations in d+Au and Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV from STAR"

description: Away-side (|dphi| &gt; 0.9) associated yield per trigger particle for various trigger particle pT selections as a function of associated pT . Results are shown for 0-12% central Au+Au collisions and for d+Au collisions.
description: Yields, correlation shapes, and mean transverse momenta pT of charged particles associated with intermediate to high-pT trigger particles (2.5 &lt; pT &lt; 10 GeV/c) in d+Au and Au+Au collisions at sqrt(sNN) = 200 GeV are presented. For associated particles at higher pT &gt; 2.5 GeV\c, narrow correlation peaks are seen in d+Au and Au+Au, indicating that the main production mechanism is jet fragmentation. At lower associated particle pT &lt; 2 GeV/c, a large enhancement of the near- (dphi ~ 0) and away-side (dphi ~ pi) associated yields is found, together with a strong broadening of the away-side azimuthal distributions in Au+Au collisions compared to d+Au measurements, suggesting that other particle production mechanisms play a role. This is further supported by the observed significant softening of the away-side associated particle yield distribution at dphi ~ pi in central Au+Au collisions.
DOI: 10.17182/hepdata.100594.v1/t1
title: "Figure 1" of "Azimuthal anisotropy and correlations at large transverse momenta in p + p and Au + Au collisions at s(NN)**(1/2) = 200-GeV."

description: Azimuthal correlations in Au+Au col- lisions (squares) as a function of centrality (peripheral to cen- tral from left to right) compared to minimum bias azimuthal correlations in p + p collisions (circles). Errors are statistical only.
description: Results on high transverse momentum charged particle emission with respect to the reaction plane are presented for Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV. Two- and four-particle correlations results are presented as well as a comparison of azimuthal correlations in Au+Au collisions to those in $p+p$ at the same energy. Elliptic anisotropy, $v_{2}$, is found to reach its maximum at $p_{t}$ ∼ 3 GeV/c, then decrease slowly and remain significant up to $p_{t} \approx$ 7 -- 10 GeV/c. Stronger suppression is found in the back-to-back high-pt particle correlations for particles emitted out-of-plane compared to those emitted in-plane. The centrality dependence of $v_{2}$ at intermediate pt is compared to simple models based on jet quenching.
DOI: 10.17182/hepdata.100594.v1/t2
title: "Figure 2" of "Azimuthal anisotropy and correlations at large transverse momenta in p + p and Au + Au collisions at s(NN)**(1/2) = 200-GeV."

description: $v_{2}$ of charged particles as a function of transverse momentum from the two-particle cumu- lant method (triangles) and four-particle cumulant method (stars). Open circles show the 2-particle correlation results after subtracting the correlations measured in p + p collisions. Only statistical errors are shown.
description: Results on high transverse momentum charged particle emission with respect to the reaction plane are presented for Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV. Two- and four-particle correlations results are presented as well as a comparison of azimuthal correlations in Au+Au collisions to those in $p+p$ at the same energy. Elliptic anisotropy, $v_{2}$, is found to reach its maximum at $p_{t}$ ∼ 3 GeV/c, then decrease slowly and remain significant up to $p_{t} \approx$ 7 -- 10 GeV/c. Stronger suppression is found in the back-to-back high-pt particle correlations for particles emitted out-of-plane compared to those emitted in-plane. The centrality dependence of $v_{2}$ at intermediate pt is compared to simple models based on jet quenching.
DOI: 10.17182/hepdata.100594.v1/t3
title: "Figure 3_1" of "Azimuthal anisotropy and correlations at large transverse momenta in p + p and Au + Au collisions at s(NN)**(1/2) = 200-GeV."

description: Upper panel, Azimuthal distributions of associated particles for trigger particles in-plane (squares) and out-of-plane (triangles) for Au+Au collisions at centrality 20-60%. Open symbols are reflections of solid symbols around $\Delta \phi$ = 0 and $\Delta \phi$ = $\pi$. Elliptic flow contribution is shown by dashed lines. Lower panel, Distributions after substracting elliptic flow, and the corresponding measurement in p + p collisions (histogram).
description: Results on high transverse momentum charged particle emission with respect to the reaction plane are presented for Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV. Two- and four-particle correlations results are presented as well as a comparison of azimuthal correlations in Au+Au collisions to those in $p+p$ at the same energy. Elliptic anisotropy, $v_{2}$, is found to reach its maximum at $p_{t}$ ∼ 3 GeV/c, then decrease slowly and remain significant up to $p_{t} \approx$ 7 -- 10 GeV/c. Stronger suppression is found in the back-to-back high-pt particle correlations for particles emitted out-of-plane compared to those emitted in-plane. The centrality dependence of $v_{2}$ at intermediate pt is compared to simple models based on jet quenching.
DOI: 10.17182/hepdata.100594.v1/t4
title: "Figure 3_2" of "Azimuthal anisotropy and correlations at large transverse momenta in p + p and Au + Au collisions at s(NN)**(1/2) = 200-GeV."

description: Upper panel, Azimuthal distributions of associated particles for trigger particles in-plane (squares) and out-of-plane (triangles) for Au+Au collisions at centrality 20-60%. Open symbols are reflections of solid symbols around $\Delta \phi$ = 0 and $\Delta \phi$ = $\pi$. Elliptic flow contribution is shown by dashed lines. Lower panel, Distributions after substracting elliptic flow, and the corresponding measurement in p + p collisions (histogram).
description: Results on high transverse momentum charged particle emission with respect to the reaction plane are presented for Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV. Two- and four-particle correlations results are presented as well as a comparison of azimuthal correlations in Au+Au collisions to those in $p+p$ at the same energy. Elliptic anisotropy, $v_{2}$, is found to reach its maximum at $p_{t}$ ∼ 3 GeV/c, then decrease slowly and remain significant up to $p_{t} \approx$ 7 -- 10 GeV/c. Stronger suppression is found in the back-to-back high-pt particle correlations for particles emitted out-of-plane compared to those emitted in-plane. The centrality dependence of $v_{2}$ at intermediate pt is compared to simple models based on jet quenching.
DOI: 10.17182/hepdata.100594.v1/t5
title: "Figure 4" of "Azimuthal anisotropy and correlations at large transverse momenta in p + p and Au + Au collisions at s(NN)**(1/2) = 200-GeV."

description: $v_{2}$ at 3 ≤ $p_{t}$ ≤ 6 GeV/c versus impact parameter, b, compared to models of particle emission by a static source (see text).
description: Results on high transverse momentum charged particle emission with respect to the reaction plane are presented for Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV. Two- and four-particle correlations results are presented as well as a comparison of azimuthal correlations in Au+Au collisions to those in $p+p$ at the same energy. Elliptic anisotropy, $v_{2}$, is found to reach its maximum at $p_{t}$ ∼ 3 GeV/c, then decrease slowly and remain significant up to $p_{t} \approx$ 7 -- 10 GeV/c. Stronger suppression is found in the back-to-back high-pt particle correlations for particles emitted out-of-plane compared to those emitted in-plane. The centrality dependence of $v_{2}$ at intermediate pt is compared to simple models based on jet quenching.
DOI: 10.17182/hepdata.100595.v1/t1
title: "Figure 2" of "K*(892) resonance production in Au + Au and p + p collisions at s(NN)**(1/2) = 200-GeV at STAR."

description: $K_S^0$ signal observed in the $\pi^+\pi^−$ invariant mass distribution reconstructed from the decay topology method via $K_S^0-&gt;\pi^+\pi^−$ in $p+p$ collisions. The dashed curve depicts the Gaussian fit function plus a linear function representing the background.
description: The short-lived $K(892)^*$ resonance provides an efficient tool to probe properties of the hot and dense medium produced in relativistic heavy-ion collisions. We report measurements of $K^*$ in $sqrt{s_{NN}} =200GeV$ Au+Au and $p+p$ collisions reconstructed via its hadronic decay channels $K(892)^{*0}-&gt;K\pi$ and $K(892)^{*\pm}-&gt;K_S^0\pi^{\pm}$ using the STAR detector at RHIC. The $K^{*0}$ mass has been studied as a function of $p_T$ in minimum bias $p+p$ and central Au+Au collisions. The $K^*$ $p_T$ spectra for minimum bias $p+p$ interactions and for Au+Au collisions in different centralities are presented. The $K^*/K$ yield ratios for all centralities in Au+Au collisions are found to be significantly lower than the ratio in minimum bias $p+p$ collisions, indicating the importance of hadronic interactions between chemical and kinetic freeze-outs. A significant non-zero $K^{*0}$ elliptic flow ($v^2$) is observed in Au+Au collisions and compared to the $K_S^0$ and $\Lambda$ $v^2$. The nuclear modification factor of $K^*$ at intermediate $p_T$ is similar to that of $K_S^0$ , but different from $\Lambda$. This establishes a baryon-meson effect over a mass effect in the particle production at intermediate pT (2