cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.129290.v1/t97
title: "Figure 3, first row, cent. 9-18%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, NS-CI, projected onto (y_t1, y_t2), in centrality bin 9-18%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t98
title: "Figure 3, first row, cent. 5-9%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, NS-CI, projected onto (y_t1, y_t2), in centrality bin 5-9%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t101
title: "Figure 3, second row, cent. 74-84%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, AS-CI, projected onto (y_t1, y_t2), in centrality bin 74-84%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t102
title: "Figure 3, second row, cent. 64-74%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, AS-CI, projected onto (y_t1, y_t2), in centrality bin 64-74%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t103
title: "Figure 3, second row, cent. 55-64%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, AS-CI, projected onto (y_t1, y_t2), in centrality bin 55-64%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t104
title: "Figure 3, second row, cent. 46-55%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, AS-CI, projected onto (y_t1, y_t2), in centrality bin 46-55%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t105
title: "Figure 3, second row, cent. 38-46%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, AS-CI, projected onto (y_t1, y_t2), in centrality bin 38-46%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t106
title: "Figure 3, second row, cent. 28-38%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, AS-CI, projected onto (y_t1, y_t2), in centrality bin 28-38%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.25549/vercoutere-ouc110611246
title: 3 nude women reclining against each other

description: Three nude females lying on top of each other, including a white one depicted from shoulders to knees outlined in yellow with yellow pubic hair and black outlined breasts and ribs, a pink one depicted from shoulders to ankles, and a darker pink one partially hidden at the bottom of the pile depicted from shoulders to knees. Background includes pink, yellow, and black splotches. See description of 001 for OT notes.
DOI: 10.17182/hepdata.129290.v1/t107
title: "Figure 3, second row, cent. 18-28%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, AS-CI, projected onto (y_t1, y_t2), in centrality bin 18-28%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t108
title: "Figure 3, second row, cent. 9-18%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, AS-CI, projected onto (y_t1, y_t2), in centrality bin 9-18%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t109
title: "Figure 3, second row, cent. 5-9%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, AS-CI, projected onto (y_t1, y_t2), in centrality bin 5-9%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t110
title: "Figure 3, second row, cent. 0-5%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, AS-CI, projected onto (y_t1, y_t2), in centrality bin 0-5%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t111
title: "Figure 3, third row, cent. 84-93%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, NS-CD, projected onto (y_t1, y_t2), in centrality bin 84-93%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t112
title: "Figure 3, third row, cent. 74-84%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, NS-CD, projected onto (y_t1, y_t2), in centrality bin 74-84%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t113
title: "Figure 3, third row, cent. 64-74%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, NS-CD, projected onto (y_t1, y_t2), in centrality bin 64-74%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t99
title: "Figure 3, first row, cent. 0-5%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, NS-CI, projected onto (y_t1, y_t2), in centrality bin 0-5%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t114
title: "Figure 3, third row, cent. 55-64%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, NS-CD, projected onto (y_t1, y_t2), in centrality bin 55-64%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t115
title: "Figure 3, third row, cent. 46-55%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, NS-CD, projected onto (y_t1, y_t2), in centrality bin 46-55%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t116
title: "Figure 3, third row, cent. 38-46%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, NS-CD, projected onto (y_t1, y_t2), in centrality bin 38-46%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t117
title: "Figure 3, third row, cent. 28-38%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, NS-CD, projected onto (y_t1, y_t2), in centrality bin 28-38%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t118
title: "Figure 3, third row, cent. 18-28%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, NS-CD, projected onto (y_t1, y_t2), in centrality bin 18-28%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t119
title: "Figure 3, third row, cent. 9-18%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, NS-CD, projected onto (y_t1, y_t2), in centrality bin 9-18%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t120
title: "Figure 3, third row, cent. 5-9%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, NS-CD, projected onto (y_t1, y_t2), in centrality bin 5-9%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t122
title: "Figure 3, fourth row, cent. 84-93%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, AS-CD, projected onto (y_t1, y_t2), in centrality bin 84-93%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t121
title: "Figure 3, third row, cent. 0-5%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, NS-CD, projected onto (y_t1, y_t2), in centrality bin 0-5%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t123
title: "Figure 3, fourth row, cent. 74-84%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, AS-CD, projected onto (y_t1, y_t2), in centrality bin 74-84%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t125
title: "Figure 3, fourth row, cent. 55-64%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, AS-CD, projected onto (y_t1, y_t2), in centrality bin 55-64%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t126
title: "Figure 3, fourth row, cent. 46-55%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, AS-CD, projected onto (y_t1, y_t2), in centrality bin 46-55%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t127
title: "Figure 3, fourth row, cent. 38-46%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, AS-CD, projected onto (y_t1, y_t2), in centrality bin 38-46%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t128
title: "Figure 3, fourth row, cent. 28-38%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, AS-CD, projected onto (y_t1, y_t2), in centrality bin 28-38%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t129
title: "Figure 3, fourth row, cent. 18-28%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, AS-CD, projected onto (y_t1, y_t2), in centrality bin 18-28%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.25549/vercoutere-ouc110611257
title: Nude woman standing with 2 men in an outside scene

description: Back view of one blue nude female (?) with blond hair standing next to a male dressed in a long-sleeved tan shirt, black pants, and brown shoes. A male depicted from forehead to feet stands a short distance away and is wearing a military uniform with black coat, white belt, gray pants, and brown shoes. They are standing in green grass with a gray wall in the background; colored blocks and other black objects are on the wall. See description of 001 for OT notes.
DOI: 10.17182/hepdata.129290.v1/t124
title: "Figure 3, fourth row, cent. 64-74%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, AS-CD, projected onto (y_t1, y_t2), in centrality bin 64-74%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t130
title: "Figure 3, fourth row, cent. 9-18%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, AS-CD, projected onto (y_t1, y_t2), in centrality bin 9-18%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t131
title: "Figure 3, fourth row, cent. 5-9%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, AS-CD, projected onto (y_t1, y_t2), in centrality bin 5-9%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t132
title: "Figure 3, fourth row, cent. 0-5%" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Two-dimensional correlations of charged-hadrons, AS-CD, projected onto (y_t1, y_t2), in centrality bin 0-5%. Only centrality bins 74-84%, 46 - 55%, 18-28%, and 0-5% shown in paper.
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t134
title: "Figure 6, panel b" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Fit results for the yTSigma_0 of the measured and predicted correlation peak near (yT 1, yT 2) ≈ (3,3) as a function of centrality
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t133
title: "Figure 6, panel a" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Fit results for the amplitudes of the measured and predicted correlation peak near (yT 1, yT 2) ≈ (3,3) as a function of centrality
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t135
title: "Figure 7, panel a" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Fit results for the amplitudes of the measured and predicted correlation peak near (yT 1, yT 2) ≈ (3,1) as a function of centrality
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t136
title: "Figure 7, panel b" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Fit results for the yT_1 of the measured and predicted correlation peak near (yT 1, yT 2) ≈ (3,1) as a function of centrality
description: No data abstract available.
DOI: 10.17182/hepdata.129290.v1/t137
title: "Figure 7, panel c" of "Two-particle correlations on transverse rapidity in Au+Au collisions at $\sqrt {s_{NN}}=200$ GeV at STAR"

description: Fit results for the yT_2 of the measured and predicted correlation peak near (yT 1, yT 2) ≈ (3,1) as a function of centrality
description: No data abstract available.
DOI: 10.17182/hepdata.129292.v1/t1
title: "Figure 12" of "Nonprompt direct-photon production in Au$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV"

description: Direct photon $R_{\gamma}$, every 20% centrality
description: BNL-RHIC. The measurement of the direct photon spectrum from Au$+$Au collisions at $\sqrt{s_{NN}}$ = 200 GeV is presented by the PHENIX collaboration using the external photon conversion technique for 0\%--93\% central collisions in a transverse momentum ($p_T$) range of 0.8--10 GeV/$c$. An excess of direct photons, above prompt photon production from hard scattering processes, is observed for $p_T&lt; 6$ GeV/$c$. nonprompt direct photons are measured by subtracting the prompt component, which is estimated as $N_{coll}$-scaled direct photons from p+p collisions at 200 GeV, from the direct photon spectrum. Results are obtained for $0.8&lt;$p_T$&lt;6.0$ GeV/$c$ and suggest that the spectrum has an increasing inverse slope from about 0.2 GeV/$c$ to around 0.4 GeV/$c$ with increasing $p_T$. This indicates a possible sensitivity of the measurement to photons from earlier stages of the evolution of the collision. In addition, like the direct photon production, the $p_T$-integrated nonprompt direct photon yields also follow a power law scaling behavior as a function of collision system size. The exponent, $\alpha$, for the nonprompt component is found to be consistent with 1.1 with no apparent $p_T$ dependence.
DOI: 10.17182/hepdata.129292.v1/t2
title: "Figure 13" of "Nonprompt direct-photon production in Au$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV"

description: Direct photon $R_{\gamma}$, every 10% centrality
description: BNL-RHIC. The measurement of the direct photon spectrum from Au$+$Au collisions at $\sqrt{s_{NN}}$ = 200 GeV is presented by the PHENIX collaboration using the external photon conversion technique for 0\%--93\% central collisions in a transverse momentum ($p_T$) range of 0.8--10 GeV/$c$. An excess of direct photons, above prompt photon production from hard scattering processes, is observed for $p_T&lt; 6$ GeV/$c$. nonprompt direct photons are measured by subtracting the prompt component, which is estimated as $N_{coll}$-scaled direct photons from p+p collisions at 200 GeV, from the direct photon spectrum. Results are obtained for $0.8&lt;$p_T$&lt;6.0$ GeV/$c$ and suggest that the spectrum has an increasing inverse slope from about 0.2 GeV/$c$ to around 0.4 GeV/$c$ with increasing $p_T$. This indicates a possible sensitivity of the measurement to photons from earlier stages of the evolution of the collision. In addition, like the direct photon production, the $p_T$-integrated nonprompt direct photon yields also follow a power law scaling behavior as a function of collision system size. The exponent, $\alpha$, for the nonprompt component is found to be consistent with 1.1 with no apparent $p_T$ dependence.
DOI: 10.17182/hepdata.129292.v1/t3
title: "Figure 14" of "Nonprompt direct-photon production in Au$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV"

description: Invariant yield of direct photons, every 10% centrality
description: BNL-RHIC. The measurement of the direct photon spectrum from Au$+$Au collisions at $\sqrt{s_{NN}}$ = 200 GeV is presented by the PHENIX collaboration using the external photon conversion technique for 0\%--93\% central collisions in a transverse momentum ($p_T$) range of 0.8--10 GeV/$c$. An excess of direct photons, above prompt photon production from hard scattering processes, is observed for $p_T&lt; 6$ GeV/$c$. nonprompt direct photons are measured by subtracting the prompt component, which is estimated as $N_{coll}$-scaled direct photons from p+p collisions at 200 GeV, from the direct photon spectrum. Results are obtained for $0.8&lt;$p_T$&lt;6.0$ GeV/$c$ and suggest that the spectrum has an increasing inverse slope from about 0.2 GeV/$c$ to around 0.4 GeV/$c$ with increasing $p_T$. This indicates a possible sensitivity of the measurement to photons from earlier stages of the evolution of the collision. In addition, like the direct photon production, the $p_T$-integrated nonprompt direct photon yields also follow a power law scaling behavior as a function of collision system size. The exponent, $\alpha$, for the nonprompt component is found to be consistent with 1.1 with no apparent $p_T$ dependence.
DOI: 10.17182/hepdata.129292.v1/t4
title: "Figure 15" of "Nonprompt direct-photon production in Au$+$Au collisions at $\sqrt{s_{_{NN}}}=200$ GeV"

description: Invariant yield of direct photons, every 20% centrality
description: BNL-RHIC. The measurement of the direct photon spectrum from Au$+$Au collisions at $\sqrt{s_{NN}}$ = 200 GeV is presented by the PHENIX collaboration using the external photon conversion technique for 0\%--93\% central collisions in a transverse momentum ($p_T$) range of 0.8--10 GeV/$c$. An excess of direct photons, above prompt photon production from hard scattering processes, is observed for $p_T&lt; 6$ GeV/$c$. nonprompt direct photons are measured by subtracting the prompt component, which is estimated as $N_{coll}$-scaled direct photons from p+p collisions at 200 GeV, from the direct photon spectrum. Results are obtained for $0.8&lt;$p_T$&lt;6.0$ GeV/$c$ and suggest that the spectrum has an increasing inverse slope from about 0.2 GeV/$c$ to around 0.4 GeV/$c$ with increasing $p_T$. This indicates a possible sensitivity of the measurement to photons from earlier stages of the evolution of the collision. In addition, like the direct photon production, the $p_T$-integrated nonprompt direct photon yields also follow a power law scaling behavior as a function of collision system size. The exponent, $\alpha$, for the nonprompt component is found to be consistent with 1.1 with no apparent $p_T$ dependence.