cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.99155.v1/t7
title: "Figure 27a" of "Inclusive pi^0, eta, and direct photon production at high transverse momentum in p+p and d+Au collisions at sqrt(s_NN) = 200 GeV"

description: Direct photon yield in p + p collisions at $\sqrt{s_{NN}}$ = 200 GeV in terms of the double ration $R_{\gamma}$. Shaded bands in plot are $p_T$-correlated systematic uncertainties and the error bars are statistical uncertainties. The curves correspond to NLO pQCD calculations of the differential cross sections for direct photon [68] and $\pi^0$ [52] production in p + p collisions for different factorization scales $\mu$ (the upper pQCD curve corresponds to $\mu$ = $p_T$/2). The upper limit of the fractional neutral hadron contamination $C_0$ is shown as the shaded band at $R_{\gamma}$ = 0.
description: We report a measurement of high-$p_T$ inclusive $\pi^0$, $\eta$, and direct photon production in p+p and d+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV at midrapidity (0 &lt; $\eta$ &lt; 1). Photons from the decay $\pi^0$ -&gt; $\gamma\gamma$ were detected in the Barrel Electromagnetic Calorimeter of the STAR experiment at the Relativistic Heavy Ion Collider. The $\eta$ -&gt; $\gamma\gamma$ decay was also observed and constituted the first eta measurement by STAR. The first direct photon cross section measurement by STAR is also presented, the signal was extracted statistically by subtracting the $\pi^0$, $\eta$, and $\omega$(782) decay background from the inclusive photon distribution observed in the calorimeter. The analysis is described in detail, and the results are found to be in good agreement with earlier measurements and with next-to-leading order perturbative QCD calculations.
DOI: 10.17182/hepdata.99155.v1/t8
title: "Figure 27b" of "Inclusive pi^0, eta, and direct photon production at high transverse momentum in p+p and d+Au collisions at sqrt(s_NN) = 200 GeV"

description: Direct photon yield in d + Au collisions at $\sqrt{s_{NN}}$ = 200 GeV in terms of the double ration $R_{\gamma}$. Shaded bands in plot are $p_T$-correlated systematic uncertainties and the error bars are statistical uncertainties. The curves correspond to NLO pQCD calculations of the differential cross sections for direct photon [68] and $\pi^0$ [52] production in p + p collisions for different factorization scales $\mu$ (the upper pQCD curve corresponds to $\mu$ = $p_T$/2). The upper limit of the fractional neutral hadron contamination $C_0$ is shown as the shaded band at $R_{\gamma}$ = 0.
description: We report a measurement of high-$p_T$ inclusive $\pi^0$, $\eta$, and direct photon production in p+p and d+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV at midrapidity (0 &lt; $\eta$ &lt; 1). Photons from the decay $\pi^0$ -&gt; $\gamma\gamma$ were detected in the Barrel Electromagnetic Calorimeter of the STAR experiment at the Relativistic Heavy Ion Collider. The $\eta$ -&gt; $\gamma\gamma$ decay was also observed and constituted the first eta measurement by STAR. The first direct photon cross section measurement by STAR is also presented, the signal was extracted statistically by subtracting the $\pi^0$, $\eta$, and $\omega$(782) decay background from the inclusive photon distribution observed in the calorimeter. The analysis is described in detail, and the results are found to be in good agreement with earlier measurements and with next-to-leading order perturbative QCD calculations.
DOI: 10.17182/hepdata.99155.v1/t9
title: "Figure 28" of "Inclusive pi^0, eta, and direct photon production at high transverse momentum in p+p and d+Au collisions at sqrt(s_NN) = 200 GeV"

description: Cross sections for direct photon production at midrapidity in p + p and d + Au collisions at $\sqrt{s_{NN}}$ = 200 GeV, compared to the PHENIX measurement [29] and to the NLO pQCD calculation [68], which was scaled with $$ [Eq. (23)] in case of d + Au collisions. The error bars are statistical the shaded bands are $p_T$-correlated systematic uncertainties. The arrows correspond to the 95% confidence limits, as defined in the text. Normalization uncertainties of 11.7% for p+p and 5.3% for d+Au are not shown. Separate columns in the table show upper 95% confidence limits. The 95% confidence limits for the cross section are used when $R_{\gamma}$ did not correspond to a significant direct photon signal, assuming that the statistical and systematic errors both followed a Gaussian distribution, and using the fact that $R_{\gamma}\geq 1$ by definition.
description: We report a measurement of high-$p_T$ inclusive $\pi^0$, $\eta$, and direct photon production in p+p and d+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV at midrapidity (0 &lt; $\eta$ &lt; 1). Photons from the decay $\pi^0$ -&gt; $\gamma\gamma$ were detected in the Barrel Electromagnetic Calorimeter of the STAR experiment at the Relativistic Heavy Ion Collider. The $\eta$ -&gt; $\gamma\gamma$ decay was also observed and constituted the first eta measurement by STAR. The first direct photon cross section measurement by STAR is also presented, the signal was extracted statistically by subtracting the $\pi^0$, $\eta$, and $\omega$(782) decay background from the inclusive photon distribution observed in the calorimeter. The analysis is described in detail, and the results are found to be in good agreement with earlier measurements and with next-to-leading order perturbative QCD calculations.
DOI: 10.17182/hepdata.99156.v1/t1
title: "Figure 1a" of "Longitudinal double-spin asymmetry and cross section for inclusive neutral pion production at midrapidity in polarized proton collisions at sqrt(s) = 200 GeV"

description: Cross sections for inclusive $\pi^0$ production in p + p and d + Au collisions at $\sqrt{s}$ = 200 GeV, compared to a NLO pQCD calculations [8] based on the DDS set of fragmentation functions [24], and to the STAR $\pi^{+-}$ measurement [25]. Normalization uncertainty of 11.7% is not included.
description: We report a measurement of the longitudinal double-spin asymmetry $A_{LL}$ and the differential cross section for inclusive $\pi^0$ production at midrapidity in polarized proton collisions at $\sqrt{s}$ = 200 GeV. The cross section was measured over a transverse momentum range of 1 &lt; $p_T$ &lt; 17 GeV/c and found to be in good agreement with a next-to-leading order perturbative QCD calculation. The longitudinal double-spin asymmetry was measured in the range of 3.7 &lt; $p_T$ &lt; 11 GeV/c and excludes a maximal positive gluon polarization in the proton. The mean transverse momentum fraction of $\pi^0$s in their parent jets was found to be around 0.7 for electromagnetically triggered events.
DOI: 10.17182/hepdata.99156.v1/t2
title: "Figure 2a" of "Longitudinal double-spin asymmetry and cross section for inclusive neutral pion production at midrapidity in polarized proton collisions at sqrt(s) = 200 GeV"

description: Mean transverse momentum fraction of $\pi^0$s in their associated jets, as a function of pion $p_T$, for electromagnetically triggered events. Systematic errors are shown by the shaded band around the data points. The curves are results from simulations with the PYTHIA event generator. The solid curve includes detector effects simulated by geant, while the dashed curve uses jet finding at the pythia particle level.
description: We report a measurement of the longitudinal double-spin asymmetry $A_{LL}$ and the differential cross section for inclusive $\pi^0$ production at midrapidity in polarized proton collisions at $\sqrt{s}$ = 200 GeV. The cross section was measured over a transverse momentum range of 1 &lt; $p_T$ &lt; 17 GeV/c and found to be in good agreement with a next-to-leading order perturbative QCD calculation. The longitudinal double-spin asymmetry was measured in the range of 3.7 &lt; $p_T$ &lt; 11 GeV/c and excludes a maximal positive gluon polarization in the proton. The mean transverse momentum fraction of $\pi^0$s in their parent jets was found to be around 0.7 for electromagnetically triggered events.
DOI: 10.17182/hepdata.99156.v1/t3
title: "Figure 3" of "Longitudinal double-spin asymmetry and cross section for inclusive neutral pion production at midrapidity in polarized proton collisions at sqrt(s) = 200 GeV"

description: Longitudinal double-spin asymmetry for inclusive $\pi^0$ production at midrapidity in p+p collisions at $\sqrt{s}$ = 200 GeV, compared to NLO pQCD calculations based on the gluon distributions from the GRSV [33], GS-C [34], and DSSV [12] global analyses. The systematic error (shaded band) does not include a 9.4% normalization uncertainty due to the beam polarization measurement.
description: We report a measurement of the longitudinal double-spin asymmetry $A_{LL}$ and the differential cross section for inclusive $\pi^0$ production at midrapidity in polarized proton collisions at $\sqrt{s}$ = 200 GeV. The cross section was measured over a transverse momentum range of 1 &lt; $p_T$ &lt; 17 GeV/c and found to be in good agreement with a next-to-leading order perturbative QCD calculation. The longitudinal double-spin asymmetry was measured in the range of 3.7 &lt; $p_T$ &lt; 11 GeV/c and excludes a maximal positive gluon polarization in the proton. The mean transverse momentum fraction of $\pi^0$s in their parent jets was found to be around 0.7 for electromagnetically triggered events.
DOI: 10.25549/vercoutere-ouc110611134
title: Headless woman in flowery dress

description: One headless female in a flowery-patterned dress sitting next to a disembodied head on a black background. See description of 001 for OT notes.
DOI: 10.3535/2qx-f3a-2sr
title: Melastoma L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/q0f-rxn-q9h
title: Rubus leucanthus Hance

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.17182/hepdata.99158.v1/t1
title: "Figure 9a" of "$J/\psi$ production at low $p_T$ in Au+Au and Cu+Cu collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV at STAR"

description: The invariant yield versus transverse momentum for |y| &lt; 1 in 0-20% centrality in Au+Au collisions (solid circles). The results are compared to high-$p_T$ (3 &lt; $p_T$ &lt; 10 GeV/c) results from STAR [9] (solid squares) and PHENIX data [8] (open squares).
description: The $J/\psi$ $p_T$ spectrum and nuclear modification factor ($R_{AA}$) are reported for $p_T$ &lt; 5 GeV/c and |y|&lt;1 from 0% to 60% central Au+Au and Cu+Cu collisions at $\sqrt{s_{NN}}$ = 200 GeV at STAR. A significant suppression of $p_T$-integrated $J/\psi$ production is observed in central Au+Au events. The Cu+Cu data are consistent with no suppression, although the precision is limited by the available statistics. $R_{AA}$ in Au+Au collisions exhibits a strong suppression at low transverse momentum and gradually increases with $p_T$. The data are compared to high-$p_T$ STAR results and previously published BNL Relativistic Heavy Ion Collider results. Comparing with model calculations, it is found that the invariant yields at low $p_T$ are significantly above hydrodynamic flow predictions but are consistent with models that include color screening and regeneration.
DOI: 10.17182/hepdata.99158.v1/t2
title: "Figure 9b" of "$J/\psi$ production at low $p_T$ in Au+Au and Cu+Cu collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV at STAR"

description: The invariant yield versus transverse momentum for |y| &lt; 1 in 20-40% centrality in Au+Au collisions (solid circles). The results are compared to high-$p_T$ (3 &lt; $p_T$ &lt; 10 GeV/c) results from STAR [9] (solid squares) and PHENIX data [8] (open squares).
description: The $J/\psi$ $p_T$ spectrum and nuclear modification factor ($R_{AA}$) are reported for $p_T$ &lt; 5 GeV/c and |y|&lt;1 from 0% to 60% central Au+Au and Cu+Cu collisions at $\sqrt{s_{NN}}$ = 200 GeV at STAR. A significant suppression of $p_T$-integrated $J/\psi$ production is observed in central Au+Au events. The Cu+Cu data are consistent with no suppression, although the precision is limited by the available statistics. $R_{AA}$ in Au+Au collisions exhibits a strong suppression at low transverse momentum and gradually increases with $p_T$. The data are compared to high-$p_T$ STAR results and previously published BNL Relativistic Heavy Ion Collider results. Comparing with model calculations, it is found that the invariant yields at low $p_T$ are significantly above hydrodynamic flow predictions but are consistent with models that include color screening and regeneration.
DOI: 10.17182/hepdata.99158.v1/t3
title: "Figure 9c" of "$J/\psi$ production at low $p_T$ in Au+Au and Cu+Cu collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV at STAR"

description: The invariant yield versus transverse momentum for |y| &lt; 1 in 40-60% centrality in Au+Au collisions (solid circles). The results are compared to high-$p_T$ (3 &lt; $p_T$ &lt; 10 GeV/c) results from STAR [9] (solid squares) and PHENIX data [8] (open squares).
description: The $J/\psi$ $p_T$ spectrum and nuclear modification factor ($R_{AA}$) are reported for $p_T$ &lt; 5 GeV/c and |y|&lt;1 from 0% to 60% central Au+Au and Cu+Cu collisions at $\sqrt{s_{NN}}$ = 200 GeV at STAR. A significant suppression of $p_T$-integrated $J/\psi$ production is observed in central Au+Au events. The Cu+Cu data are consistent with no suppression, although the precision is limited by the available statistics. $R_{AA}$ in Au+Au collisions exhibits a strong suppression at low transverse momentum and gradually increases with $p_T$. The data are compared to high-$p_T$ STAR results and previously published BNL Relativistic Heavy Ion Collider results. Comparing with model calculations, it is found that the invariant yields at low $p_T$ are significantly above hydrodynamic flow predictions but are consistent with models that include color screening and regeneration.
DOI: 10.17182/hepdata.99158.v1/t4
title: "Figure 9d" of "$J/\psi$ production at low $p_T$ in Au+Au and Cu+Cu collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV at STAR"

description: The invariant yield versus transverse momentum for |y| &lt; 1 in 0-60% centrality in Au+Au collisions (solid circles). The results are compared to high-$p_T$ (3 &lt; $p_T$ &lt; 10 GeV/c) results from STAR [9] (solid squares) and PHENIX data [8] (open squares). Also shown is the yield in 0-60% centrality Cu+Cu collisions for low $p_T$ (solid triangles) and high $p_T$ [48] (open triangles). The models are described in the text [49, 50]. The $J/\psi$ cross section in p+p collisions is also shown at STAR (stars) and PHENIX [51] (diamonds), and the scale is indicated on the right axis.
description: The $J/\psi$ $p_T$ spectrum and nuclear modification factor ($R_{AA}$) are reported for $p_T$ &lt; 5 GeV/c and |y|&lt;1 from 0% to 60% central Au+Au and Cu+Cu collisions at $\sqrt{s_{NN}}$ = 200 GeV at STAR. A significant suppression of $p_T$-integrated $J/\psi$ production is observed in central Au+Au events. The Cu+Cu data are consistent with no suppression, although the precision is limited by the available statistics. $R_{AA}$ in Au+Au collisions exhibits a strong suppression at low transverse momentum and gradually increases with $p_T$. The data are compared to high-$p_T$ STAR results and previously published BNL Relativistic Heavy Ion Collider results. Comparing with model calculations, it is found that the invariant yields at low $p_T$ are significantly above hydrodynamic flow predictions but are consistent with models that include color screening and regeneration.
DOI: 10.17182/hepdata.99158.v1/t5
title: "Figure 12a" of "$J/\psi$ production at low $p_T$ in Au+Au and Cu+Cu collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV at STAR"

description: The $J/\psi$ nuclear modification factor versus transverse momentum for |y| &lt; 1 and $p_T$ &lt; 5 GeV/c for 0-60% centrality Au+Au collisions (solid circles). The data are compared with STAR high-$p_T$ (5 &lt; $p_T$ &lt; 10 GeV/c) results [9] and PHENIX results [8] in |y| &lt; 0.35 (open squares). The statistical and systematic uncertainties on the baseline $J/\psi$ cross section in p+p collisions are indicated by the hatched and solid bands, respectively. Boxes on the vertical axes represent the uncertainty on $N_{coll}$ combined with the uncertainty on the inelastic cross section in p+p collisions
description: The $J/\psi$ $p_T$ spectrum and nuclear modification factor ($R_{AA}$) are reported for $p_T$ &lt; 5 GeV/c and |y|&lt;1 from 0% to 60% central Au+Au and Cu+Cu collisions at $\sqrt{s_{NN}}$ = 200 GeV at STAR. A significant suppression of $p_T$-integrated $J/\psi$ production is observed in central Au+Au events. The Cu+Cu data are consistent with no suppression, although the precision is limited by the available statistics. $R_{AA}$ in Au+Au collisions exhibits a strong suppression at low transverse momentum and gradually increases with $p_T$. The data are compared to high-$p_T$ STAR results and previously published BNL Relativistic Heavy Ion Collider results. Comparing with model calculations, it is found that the invariant yields at low $p_T$ are significantly above hydrodynamic flow predictions but are consistent with models that include color screening and regeneration.
DOI: 10.3535/5bz-8na-rnq
title: Melastoma L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.17182/hepdata.99158.v1/t10
title: "Table 6" of "$J/\psi$ production at low $p_T$ in Au+Au and Cu+Cu collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV at STAR"

description: The $J/\psi$ invariant yield $Bd^2N/(2\pi p_Tdydp_T) [(GeV/c)^{-2}]$ and nuclear modification factor as a function of transverse momentum for |y| &lt; 1 in Cu+Cu collisions at $\sqrt{s_{NN}}$ = 200 GeV.
description: The $J/\psi$ $p_T$ spectrum and nuclear modification factor ($R_{AA}$) are reported for $p_T$ &lt; 5 GeV/c and |y|&lt;1 from 0% to 60% central Au+Au and Cu+Cu collisions at $\sqrt{s_{NN}}$ = 200 GeV at STAR. A significant suppression of $p_T$-integrated $J/\psi$ production is observed in central Au+Au events. The Cu+Cu data are consistent with no suppression, although the precision is limited by the available statistics. $R_{AA}$ in Au+Au collisions exhibits a strong suppression at low transverse momentum and gradually increases with $p_T$. The data are compared to high-$p_T$ STAR results and previously published BNL Relativistic Heavy Ion Collider results. Comparing with model calculations, it is found that the invariant yields at low $p_T$ are significantly above hydrodynamic flow predictions but are consistent with models that include color screening and regeneration.
DOI: 10.17182/hepdata.99158.v1/t6
title: "Figure 12b" of "$J/\psi$ production at low $p_T$ in Au+Au and Cu+Cu collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV at STAR"

description: The $J/\psi$ nuclear modification factor versus transverse momentum for |y| &lt; 1 and $p_T$ &lt; 5 GeV/c for 0-20% centrality Au+Au collisions (solid circles). The data are compared with STAR high-$p_T$ (5 &lt; $p_T$ &lt; 10 GeV/c) results [9] and PHENIX results [8] in |y| &lt; 0.35 (open squares). The statistical and systematic uncertainties on the baseline $J/\psi$ cross section in p+p collisions are indicated by the hatched and solid bands, respectively. Boxes on the vertical axes represent the uncertainty on $N_{coll}$ combined with the uncertainty on the inelastic cross section in p+p collisions
description: The $J/\psi$ $p_T$ spectrum and nuclear modification factor ($R_{AA}$) are reported for $p_T$ &lt; 5 GeV/c and |y|&lt;1 from 0% to 60% central Au+Au and Cu+Cu collisions at $\sqrt{s_{NN}}$ = 200 GeV at STAR. A significant suppression of $p_T$-integrated $J/\psi$ production is observed in central Au+Au events. The Cu+Cu data are consistent with no suppression, although the precision is limited by the available statistics. $R_{AA}$ in Au+Au collisions exhibits a strong suppression at low transverse momentum and gradually increases with $p_T$. The data are compared to high-$p_T$ STAR results and previously published BNL Relativistic Heavy Ion Collider results. Comparing with model calculations, it is found that the invariant yields at low $p_T$ are significantly above hydrodynamic flow predictions but are consistent with models that include color screening and regeneration.
DOI: 10.17182/hepdata.99158.v1/t7
title: "Figure 12c" of "$J/\psi$ production at low $p_T$ in Au+Au and Cu+Cu collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV at STAR"

description: The $J/\psi$ nuclear modification factor versus transverse momentum for |y| &lt; 1 and $p_T$ &lt; 5 GeV/c for 20-40% centrality Au+Au collisions (solid circles). The data are compared with STAR high-$p_T$ (5 &lt; $p_T$ &lt; 10 GeV/c) results [9] and PHENIX results [8] in |y| &lt; 0.35 (open squares). The statistical and systematic uncertainties on the baseline $J/\psi$ cross section in p+p collisions are indicated by the hatched and solid bands, respectively. Boxes on the vertical axes represent the uncertainty on $N_{coll}$ combined with the uncertainty on the inelastic cross section in p+p collisions
description: The $J/\psi$ $p_T$ spectrum and nuclear modification factor ($R_{AA}$) are reported for $p_T$ &lt; 5 GeV/c and |y|&lt;1 from 0% to 60% central Au+Au and Cu+Cu collisions at $\sqrt{s_{NN}}$ = 200 GeV at STAR. A significant suppression of $p_T$-integrated $J/\psi$ production is observed in central Au+Au events. The Cu+Cu data are consistent with no suppression, although the precision is limited by the available statistics. $R_{AA}$ in Au+Au collisions exhibits a strong suppression at low transverse momentum and gradually increases with $p_T$. The data are compared to high-$p_T$ STAR results and previously published BNL Relativistic Heavy Ion Collider results. Comparing with model calculations, it is found that the invariant yields at low $p_T$ are significantly above hydrodynamic flow predictions but are consistent with models that include color screening and regeneration.
DOI: 10.17182/hepdata.99158.v1/t8
title: "Figure 12d" of "$J/\psi$ production at low $p_T$ in Au+Au and Cu+Cu collisions at $\sqrt{s_{_{NN}}}$ = 200 GeV at STAR"

description: The $J/\psi$ nuclear modification factor versus transverse momentum for |y| &lt; 1 and $p_T$ &lt; 5 GeV/c for 40-60% centrality Au+Au collisions (solid circles). The data are compared with STAR high-$p_T$ (5 &lt; $p_T$ &lt; 10 GeV/c) results [9] and PHENIX results [8] in |y| &lt; 0.35 (open squares). The statistical and systematic uncertainties on the baseline $J/\psi$ cross section in p+p collisions are indicated by the hatched and solid bands, respectively. Boxes on the vertical axes represent the uncertainty on $N_{coll}$ combined with the uncertainty on the inelastic cross section in p+p collisions
description: The $J/\psi$ $p_T$ spectrum and nuclear modification factor ($R_{AA}$) are reported for $p_T$ &lt; 5 GeV/c and |y|&lt;1 from 0% to 60% central Au+Au and Cu+Cu collisions at $\sqrt{s_{NN}}$ = 200 GeV at STAR. A significant suppression of $p_T$-integrated $J/\psi$ production is observed in central Au+Au events. The Cu+Cu data are consistent with no suppression, although the precision is limited by the available statistics. $R_{AA}$ in Au+Au collisions exhibits a strong suppression at low transverse momentum and gradually increases with $p_T$. The data are compared to high-$p_T$ STAR results and previously published BNL Relativistic Heavy Ion Collider results. Comparing with model calculations, it is found that the invariant yields at low $p_T$ are significantly above hydrodynamic flow predictions but are consistent with models that include color screening and regeneration.