cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.96572.v1/t20
title: "fig11: raa kaon" of "Spectra and ratios of identified particles in Au+Au and d+Au collisions at sqrt(s_{NN})=200 GeV"

description: AuAu kaon $R_{AA}$ versus $p_T$ (Uncertainity type C is not included)
description: The transverse momentum ($p_T$) spectra and ratios of identified charged hadrons ($\pi^{\pm}$, $K^{\pm}$, $p$, $\bar{p}$) produced in $\sqrt{s_{NN}} = 200$ GeV Au+Au and d+Au collisions are reported in five different centrality classes for each collision species. The measurements of pions and protons are reported up to $p_T = 6$ GeV/c (5 GeV/c), and the measurements of kaons are reported up to $p_T = 4$ GeV/c (3.5 GeV/c) in Au+Au (d+Au) collisions. In the intermediate $p_T$ region, between 2–5 GeV/c, a significant enhancement of baryon to meson ratios compared to those measured in $p$+$p$ collisions is observed. This enhancement is present in both Au+Au and d+Au collisions, and increases as the collisions become more central. We compare a class of peripheral Au+Au collisions with a class central d+Au collisions which have a comparable number of participating nucleons and binary nucleon-nucleon collisions. The $p_T$ dependent particle ratios for these classes display a remarkable similarity, which is then discussed.
DOI: 10.17182/hepdata.96572.v1/t21
title: "fig11: raa pion" of "Spectra and ratios of identified particles in Au+Au and d+Au collisions at sqrt(s_{NN})=200 GeV"

description: AuAu pion $R_{AA}$ versus $p_T$ (Uncertainity type C is not included)
description: The transverse momentum ($p_T$) spectra and ratios of identified charged hadrons ($\pi^{\pm}$, $K^{\pm}$, $p$, $\bar{p}$) produced in $\sqrt{s_{NN}} = 200$ GeV Au+Au and d+Au collisions are reported in five different centrality classes for each collision species. The measurements of pions and protons are reported up to $p_T = 6$ GeV/c (5 GeV/c), and the measurements of kaons are reported up to $p_T = 4$ GeV/c (3.5 GeV/c) in Au+Au (d+Au) collisions. In the intermediate $p_T$ region, between 2–5 GeV/c, a significant enhancement of baryon to meson ratios compared to those measured in $p$+$p$ collisions is observed. This enhancement is present in both Au+Au and d+Au collisions, and increases as the collisions become more central. We compare a class of peripheral Au+Au collisions with a class central d+Au collisions which have a comparable number of participating nucleons and binary nucleon-nucleon collisions. The $p_T$ dependent particle ratios for these classes display a remarkable similarity, which is then discussed.
DOI: 10.17182/hepdata.96572.v1/t22
title: "fig11: raa proton" of "Spectra and ratios of identified particles in Au+Au and d+Au collisions at sqrt(s_{NN})=200 GeV"

description: AuAu proton $R_{AA}$ versus $p_T$ (Uncertainity type C is not included)
description: The transverse momentum ($p_T$) spectra and ratios of identified charged hadrons ($\pi^{\pm}$, $K^{\pm}$, $p$, $\bar{p}$) produced in $\sqrt{s_{NN}} = 200$ GeV Au+Au and d+Au collisions are reported in five different centrality classes for each collision species. The measurements of pions and protons are reported up to $p_T = 6$ GeV/c (5 GeV/c), and the measurements of kaons are reported up to $p_T = 4$ GeV/c (3.5 GeV/c) in Au+Au (d+Au) collisions. In the intermediate $p_T$ region, between 2–5 GeV/c, a significant enhancement of baryon to meson ratios compared to those measured in $p$+$p$ collisions is observed. This enhancement is present in both Au+Au and d+Au collisions, and increases as the collisions become more central. We compare a class of peripheral Au+Au collisions with a class central d+Au collisions which have a comparable number of participating nucleons and binary nucleon-nucleon collisions. The $p_T$ dependent particle ratios for these classes display a remarkable similarity, which is then discussed.
DOI: 10.17182/hepdata.96572.v1/t23
title: "fig12: rda kaon" of "Spectra and ratios of identified particles in Au+Au and d+Au collisions at sqrt(s_{NN})=200 GeV"

description: dAu kaon $R_{dA}$ versus $p_T$ (Uncertainity type C is not included)
description: The transverse momentum ($p_T$) spectra and ratios of identified charged hadrons ($\pi^{\pm}$, $K^{\pm}$, $p$, $\bar{p}$) produced in $\sqrt{s_{NN}} = 200$ GeV Au+Au and d+Au collisions are reported in five different centrality classes for each collision species. The measurements of pions and protons are reported up to $p_T = 6$ GeV/c (5 GeV/c), and the measurements of kaons are reported up to $p_T = 4$ GeV/c (3.5 GeV/c) in Au+Au (d+Au) collisions. In the intermediate $p_T$ region, between 2–5 GeV/c, a significant enhancement of baryon to meson ratios compared to those measured in $p$+$p$ collisions is observed. This enhancement is present in both Au+Au and d+Au collisions, and increases as the collisions become more central. We compare a class of peripheral Au+Au collisions with a class central d+Au collisions which have a comparable number of participating nucleons and binary nucleon-nucleon collisions. The $p_T$ dependent particle ratios for these classes display a remarkable similarity, which is then discussed.
DOI: 10.17182/hepdata.96572.v1/t24
title: "fig12: rda pion" of "Spectra and ratios of identified particles in Au+Au and d+Au collisions at sqrt(s_{NN})=200 GeV"

description: dAu pion $R_{dA}$ versus $p_T$ (Uncertainity type C is not included)
description: The transverse momentum ($p_T$) spectra and ratios of identified charged hadrons ($\pi^{\pm}$, $K^{\pm}$, $p$, $\bar{p}$) produced in $\sqrt{s_{NN}} = 200$ GeV Au+Au and d+Au collisions are reported in five different centrality classes for each collision species. The measurements of pions and protons are reported up to $p_T = 6$ GeV/c (5 GeV/c), and the measurements of kaons are reported up to $p_T = 4$ GeV/c (3.5 GeV/c) in Au+Au (d+Au) collisions. In the intermediate $p_T$ region, between 2–5 GeV/c, a significant enhancement of baryon to meson ratios compared to those measured in $p$+$p$ collisions is observed. This enhancement is present in both Au+Au and d+Au collisions, and increases as the collisions become more central. We compare a class of peripheral Au+Au collisions with a class central d+Au collisions which have a comparable number of participating nucleons and binary nucleon-nucleon collisions. The $p_T$ dependent particle ratios for these classes display a remarkable similarity, which is then discussed.
DOI: 10.17182/hepdata.96572.v1/t25
title: "fig12: rda proton" of "Spectra and ratios of identified particles in Au+Au and d+Au collisions at sqrt(s_{NN})=200 GeV"

description: dAu proton $R_{dA}$ versus $p_T$ (Uncertainity type C is not included)
description: The transverse momentum ($p_T$) spectra and ratios of identified charged hadrons ($\pi^{\pm}$, $K^{\pm}$, $p$, $\bar{p}$) produced in $\sqrt{s_{NN}} = 200$ GeV Au+Au and d+Au collisions are reported in five different centrality classes for each collision species. The measurements of pions and protons are reported up to $p_T = 6$ GeV/c (5 GeV/c), and the measurements of kaons are reported up to $p_T = 4$ GeV/c (3.5 GeV/c) in Au+Au (d+Au) collisions. In the intermediate $p_T$ region, between 2–5 GeV/c, a significant enhancement of baryon to meson ratios compared to those measured in $p$+$p$ collisions is observed. This enhancement is present in both Au+Au and d+Au collisions, and increases as the collisions become more central. We compare a class of peripheral Au+Au collisions with a class central d+Au collisions which have a comparable number of participating nucleons and binary nucleon-nucleon collisions. The $p_T$ dependent particle ratios for these classes display a remarkable similarity, which is then discussed.
DOI: 10.17182/hepdata.96572.v1/t26
title: "fig15: kaon AuAu" of "Spectra and ratios of identified particles in Au+Au and d+Au collisions at sqrt(s_{NN})=200 GeV"

description: kaon AuAu Ratio of Invariant yields versus $p_T$
description: The transverse momentum ($p_T$) spectra and ratios of identified charged hadrons ($\pi^{\pm}$, $K^{\pm}$, $p$, $\bar{p}$) produced in $\sqrt{s_{NN}} = 200$ GeV Au+Au and d+Au collisions are reported in five different centrality classes for each collision species. The measurements of pions and protons are reported up to $p_T = 6$ GeV/c (5 GeV/c), and the measurements of kaons are reported up to $p_T = 4$ GeV/c (3.5 GeV/c) in Au+Au (d+Au) collisions. In the intermediate $p_T$ region, between 2–5 GeV/c, a significant enhancement of baryon to meson ratios compared to those measured in $p$+$p$ collisions is observed. This enhancement is present in both Au+Au and d+Au collisions, and increases as the collisions become more central. We compare a class of peripheral Au+Au collisions with a class central d+Au collisions which have a comparable number of participating nucleons and binary nucleon-nucleon collisions. The $p_T$ dependent particle ratios for these classes display a remarkable similarity, which is then discussed.
DOI: 10.3535/kp8-ar8-7lc
title: Carpinus betulus L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.17182/hepdata.96572.v1/t27
title: "fig15: pion AuAu" of "Spectra and ratios of identified particles in Au+Au and d+Au collisions at sqrt(s_{NN})=200 GeV"

description: pion AuAu Ratio of Invariant yields versus $p_T$
description: The transverse momentum ($p_T$) spectra and ratios of identified charged hadrons ($\pi^{\pm}$, $K^{\pm}$, $p$, $\bar{p}$) produced in $\sqrt{s_{NN}} = 200$ GeV Au+Au and d+Au collisions are reported in five different centrality classes for each collision species. The measurements of pions and protons are reported up to $p_T = 6$ GeV/c (5 GeV/c), and the measurements of kaons are reported up to $p_T = 4$ GeV/c (3.5 GeV/c) in Au+Au (d+Au) collisions. In the intermediate $p_T$ region, between 2–5 GeV/c, a significant enhancement of baryon to meson ratios compared to those measured in $p$+$p$ collisions is observed. This enhancement is present in both Au+Au and d+Au collisions, and increases as the collisions become more central. We compare a class of peripheral Au+Au collisions with a class central d+Au collisions which have a comparable number of participating nucleons and binary nucleon-nucleon collisions. The $p_T$ dependent particle ratios for these classes display a remarkable similarity, which is then discussed.
DOI: 10.17182/hepdata.96572.v1/t28
title: "fig15: proton AuAu" of "Spectra and ratios of identified particles in Au+Au and d+Au collisions at sqrt(s_{NN})=200 GeV"

description: proton AuAu Ratio of Invariant yields versus $p_T$
description: The transverse momentum ($p_T$) spectra and ratios of identified charged hadrons ($\pi^{\pm}$, $K^{\pm}$, $p$, $\bar{p}$) produced in $\sqrt{s_{NN}} = 200$ GeV Au+Au and d+Au collisions are reported in five different centrality classes for each collision species. The measurements of pions and protons are reported up to $p_T = 6$ GeV/c (5 GeV/c), and the measurements of kaons are reported up to $p_T = 4$ GeV/c (3.5 GeV/c) in Au+Au (d+Au) collisions. In the intermediate $p_T$ region, between 2–5 GeV/c, a significant enhancement of baryon to meson ratios compared to those measured in $p$+$p$ collisions is observed. This enhancement is present in both Au+Au and d+Au collisions, and increases as the collisions become more central. We compare a class of peripheral Au+Au collisions with a class central d+Au collisions which have a comparable number of participating nucleons and binary nucleon-nucleon collisions. The $p_T$ dependent particle ratios for these classes display a remarkable similarity, which is then discussed.
DOI: 10.17182/hepdata.96601.v1/t1
title: "Table 7" of "Transverse energy production and charged-particle multiplicity at midrapidity in various systems from $\sqrt{s_{NN}}=7.7$ to 200 GeV"

description: Transverse energy in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV
description: BNL-RHIC. Measurements of midrapidity charged particle multiplicity distributions, $dN_{ch}/d\eta$, and midrapidity transverse-energy distributions, $dE_T/d\eta$, are presented for a variety of collision systems and energies. Included are distributions for Au+Au collisions at $\sqrt{s_{NN}}$ = 200, 130, 62.4, 39, 27,19.6, 14.5, and 7.7 GeV, Cu+Cu collisions at $\sqrt{s_{NN}}$ = 200 and 62.4 GeV, Cu+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV, U+U collisions at $\sqrt{s_{NN}}$ = 193 GeV, d+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV, $^3$He+Au collisions at $\sqrt{s_{NN}}$ 200 GeV, and p+p collisions at $\sqrt{s_{NN}}$ = 200 GeV. Centrality dependent distributions at midrapidity are presented in terms of the number of nucleon participants, Npart, and the number of constituent quark participants, $N_{qp}$. For all A+A collisions down to $\sqrt{s_{NN}}$ = 7.7 GeV, it is observed that the midrapidity data are better described by scaling with $N_{qp}$ than scaling with $N_{part}$. Also presented are estimates of the Bjorken energy density, $\epsilon_{BJ}$, and the ratio of $dET/d\eta$ to $dNch/d\eta$, the latter of which is seen to be constant as a function of centrality for all systems.
DOI: 10.17182/hepdata.96601.v1/t2
title: "Table 8" of "Transverse energy production and charged-particle multiplicity at midrapidity in various systems from $\sqrt{s_{NN}}=7.7$ to 200 GeV"

description: Multiplicity in Au+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV
description: BNL-RHIC. Measurements of midrapidity charged particle multiplicity distributions, $dN_{ch}/d\eta$, and midrapidity transverse-energy distributions, $dE_T/d\eta$, are presented for a variety of collision systems and energies. Included are distributions for Au+Au collisions at $\sqrt{s_{NN}}$ = 200, 130, 62.4, 39, 27,19.6, 14.5, and 7.7 GeV, Cu+Cu collisions at $\sqrt{s_{NN}}$ = 200 and 62.4 GeV, Cu+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV, U+U collisions at $\sqrt{s_{NN}}$ = 193 GeV, d+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV, $^3$He+Au collisions at $\sqrt{s_{NN}}$ 200 GeV, and p+p collisions at $\sqrt{s_{NN}}$ = 200 GeV. Centrality dependent distributions at midrapidity are presented in terms of the number of nucleon participants, Npart, and the number of constituent quark participants, $N_{qp}$. For all A+A collisions down to $\sqrt{s_{NN}}$ = 7.7 GeV, it is observed that the midrapidity data are better described by scaling with $N_{qp}$ than scaling with $N_{part}$. Also presented are estimates of the Bjorken energy density, $\epsilon_{BJ}$, and the ratio of $dET/d\eta$ to $dNch/d\eta$, the latter of which is seen to be constant as a function of centrality for all systems.
DOI: 10.17182/hepdata.96601.v1/t3
title: "Table 9" of "Transverse energy production and charged-particle multiplicity at midrapidity in various systems from $\sqrt{s_{NN}}=7.7$ to 200 GeV"

description: Transverse energy in Au+Au collisions at $\sqrt{s_{NN}}$ = 130 GeV
description: BNL-RHIC. Measurements of midrapidity charged particle multiplicity distributions, $dN_{ch}/d\eta$, and midrapidity transverse-energy distributions, $dE_T/d\eta$, are presented for a variety of collision systems and energies. Included are distributions for Au+Au collisions at $\sqrt{s_{NN}}$ = 200, 130, 62.4, 39, 27,19.6, 14.5, and 7.7 GeV, Cu+Cu collisions at $\sqrt{s_{NN}}$ = 200 and 62.4 GeV, Cu+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV, U+U collisions at $\sqrt{s_{NN}}$ = 193 GeV, d+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV, $^3$He+Au collisions at $\sqrt{s_{NN}}$ 200 GeV, and p+p collisions at $\sqrt{s_{NN}}$ = 200 GeV. Centrality dependent distributions at midrapidity are presented in terms of the number of nucleon participants, Npart, and the number of constituent quark participants, $N_{qp}$. For all A+A collisions down to $\sqrt{s_{NN}}$ = 7.7 GeV, it is observed that the midrapidity data are better described by scaling with $N_{qp}$ than scaling with $N_{part}$. Also presented are estimates of the Bjorken energy density, $\epsilon_{BJ}$, and the ratio of $dET/d\eta$ to $dNch/d\eta$, the latter of which is seen to be constant as a function of centrality for all systems.
DOI: 10.17182/hepdata.96601.v1/t4
title: "Table 10" of "Transverse energy production and charged-particle multiplicity at midrapidity in various systems from $\sqrt{s_{NN}}=7.7$ to 200 GeV"

description: Multiplicity in Au+Au collisions at $\sqrt{s_{NN}}$ = 130 GeV
description: BNL-RHIC. Measurements of midrapidity charged particle multiplicity distributions, $dN_{ch}/d\eta$, and midrapidity transverse-energy distributions, $dE_T/d\eta$, are presented for a variety of collision systems and energies. Included are distributions for Au+Au collisions at $\sqrt{s_{NN}}$ = 200, 130, 62.4, 39, 27,19.6, 14.5, and 7.7 GeV, Cu+Cu collisions at $\sqrt{s_{NN}}$ = 200 and 62.4 GeV, Cu+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV, U+U collisions at $\sqrt{s_{NN}}$ = 193 GeV, d+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV, $^3$He+Au collisions at $\sqrt{s_{NN}}$ 200 GeV, and p+p collisions at $\sqrt{s_{NN}}$ = 200 GeV. Centrality dependent distributions at midrapidity are presented in terms of the number of nucleon participants, Npart, and the number of constituent quark participants, $N_{qp}$. For all A+A collisions down to $\sqrt{s_{NN}}$ = 7.7 GeV, it is observed that the midrapidity data are better described by scaling with $N_{qp}$ than scaling with $N_{part}$. Also presented are estimates of the Bjorken energy density, $\epsilon_{BJ}$, and the ratio of $dET/d\eta$ to $dNch/d\eta$, the latter of which is seen to be constant as a function of centrality for all systems.
DOI: 10.17182/hepdata.96601.v1/t5
title: "Table 11" of "Transverse energy production and charged-particle multiplicity at midrapidity in various systems from $\sqrt{s_{NN}}=7.7$ to 200 GeV"

description: Transverse energy in Au+Au collisions at $\sqrt{s_{NN}}$ = 62.4 GeV
description: BNL-RHIC. Measurements of midrapidity charged particle multiplicity distributions, $dN_{ch}/d\eta$, and midrapidity transverse-energy distributions, $dE_T/d\eta$, are presented for a variety of collision systems and energies. Included are distributions for Au+Au collisions at $\sqrt{s_{NN}}$ = 200, 130, 62.4, 39, 27,19.6, 14.5, and 7.7 GeV, Cu+Cu collisions at $\sqrt{s_{NN}}$ = 200 and 62.4 GeV, Cu+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV, U+U collisions at $\sqrt{s_{NN}}$ = 193 GeV, d+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV, $^3$He+Au collisions at $\sqrt{s_{NN}}$ 200 GeV, and p+p collisions at $\sqrt{s_{NN}}$ = 200 GeV. Centrality dependent distributions at midrapidity are presented in terms of the number of nucleon participants, Npart, and the number of constituent quark participants, $N_{qp}$. For all A+A collisions down to $\sqrt{s_{NN}}$ = 7.7 GeV, it is observed that the midrapidity data are better described by scaling with $N_{qp}$ than scaling with $N_{part}$. Also presented are estimates of the Bjorken energy density, $\epsilon_{BJ}$, and the ratio of $dET/d\eta$ to $dNch/d\eta$, the latter of which is seen to be constant as a function of centrality for all systems.
DOI: 10.17182/hepdata.96601.v1/t6
title: "Table 12" of "Transverse energy production and charged-particle multiplicity at midrapidity in various systems from $\sqrt{s_{NN}}=7.7$ to 200 GeV"

description: Multiplicity in Au+Au collisions at $\sqrt{s_{NN}}$ = 62.4 GeV
description: BNL-RHIC. Measurements of midrapidity charged particle multiplicity distributions, $dN_{ch}/d\eta$, and midrapidity transverse-energy distributions, $dE_T/d\eta$, are presented for a variety of collision systems and energies. Included are distributions for Au+Au collisions at $\sqrt{s_{NN}}$ = 200, 130, 62.4, 39, 27,19.6, 14.5, and 7.7 GeV, Cu+Cu collisions at $\sqrt{s_{NN}}$ = 200 and 62.4 GeV, Cu+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV, U+U collisions at $\sqrt{s_{NN}}$ = 193 GeV, d+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV, $^3$He+Au collisions at $\sqrt{s_{NN}}$ 200 GeV, and p+p collisions at $\sqrt{s_{NN}}$ = 200 GeV. Centrality dependent distributions at midrapidity are presented in terms of the number of nucleon participants, Npart, and the number of constituent quark participants, $N_{qp}$. For all A+A collisions down to $\sqrt{s_{NN}}$ = 7.7 GeV, it is observed that the midrapidity data are better described by scaling with $N_{qp}$ than scaling with $N_{part}$. Also presented are estimates of the Bjorken energy density, $\epsilon_{BJ}$, and the ratio of $dET/d\eta$ to $dNch/d\eta$, the latter of which is seen to be constant as a function of centrality for all systems.
DOI: 10.3535/9n9-lgx-e0q
title: Rumex acetosella L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/d6g-pel-0m3
title: Ailanthus altissima (Mill.) Swingle

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.17182/hepdata.96601.v1/t10
title: "Table 16" of "Transverse energy production and charged-particle multiplicity at midrapidity in various systems from $\sqrt{s_{NN}}=7.7$ to 200 GeV"

description: Multiplicity in Au+Au collisions at $\sqrt{s_{NN}}$ = 27 GeV
description: BNL-RHIC. Measurements of midrapidity charged particle multiplicity distributions, $dN_{ch}/d\eta$, and midrapidity transverse-energy distributions, $dE_T/d\eta$, are presented for a variety of collision systems and energies. Included are distributions for Au+Au collisions at $\sqrt{s_{NN}}$ = 200, 130, 62.4, 39, 27,19.6, 14.5, and 7.7 GeV, Cu+Cu collisions at $\sqrt{s_{NN}}$ = 200 and 62.4 GeV, Cu+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV, U+U collisions at $\sqrt{s_{NN}}$ = 193 GeV, d+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV, $^3$He+Au collisions at $\sqrt{s_{NN}}$ 200 GeV, and p+p collisions at $\sqrt{s_{NN}}$ = 200 GeV. Centrality dependent distributions at midrapidity are presented in terms of the number of nucleon participants, Npart, and the number of constituent quark participants, $N_{qp}$. For all A+A collisions down to $\sqrt{s_{NN}}$ = 7.7 GeV, it is observed that the midrapidity data are better described by scaling with $N_{qp}$ than scaling with $N_{part}$. Also presented are estimates of the Bjorken energy density, $\epsilon_{BJ}$, and the ratio of $dET/d\eta$ to $dNch/d\eta$, the latter of which is seen to be constant as a function of centrality for all systems.
DOI: 10.17182/hepdata.96601.v1/t11
title: "Table 17" of "Transverse energy production and charged-particle multiplicity at midrapidity in various systems from $\sqrt{s_{NN}}=7.7$ to 200 GeV"

description: Transverse energy in Au+Au collisions at $\sqrt{s_{NN}}$ = 19.6 GeV
description: BNL-RHIC. Measurements of midrapidity charged particle multiplicity distributions, $dN_{ch}/d\eta$, and midrapidity transverse-energy distributions, $dE_T/d\eta$, are presented for a variety of collision systems and energies. Included are distributions for Au+Au collisions at $\sqrt{s_{NN}}$ = 200, 130, 62.4, 39, 27,19.6, 14.5, and 7.7 GeV, Cu+Cu collisions at $\sqrt{s_{NN}}$ = 200 and 62.4 GeV, Cu+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV, U+U collisions at $\sqrt{s_{NN}}$ = 193 GeV, d+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV, $^3$He+Au collisions at $\sqrt{s_{NN}}$ 200 GeV, and p+p collisions at $\sqrt{s_{NN}}$ = 200 GeV. Centrality dependent distributions at midrapidity are presented in terms of the number of nucleon participants, Npart, and the number of constituent quark participants, $N_{qp}$. For all A+A collisions down to $\sqrt{s_{NN}}$ = 7.7 GeV, it is observed that the midrapidity data are better described by scaling with $N_{qp}$ than scaling with $N_{part}$. Also presented are estimates of the Bjorken energy density, $\epsilon_{BJ}$, and the ratio of $dET/d\eta$ to $dNch/d\eta$, the latter of which is seen to be constant as a function of centrality for all systems.