cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.98580.v1/t4
title: "Figure 2 d" of "Production of e+ e- pairs accompanied by nuclear dissociation in ultra-peripheral heavy ion collision."

description: (a) The pair mass distribution, (b) pair $p){T}$ , (c) pair rapidity and (d) pair cos($\theta′$) distributions. The data (points) are compared with predictions from the EPA (solid histogram) and lowest-order QED (dashed histogram) calculations. The error bars include both statistical and systematic errors.
description: We present the first data on $e^{+}e^{−}$ pair production accompanied by nuclear breakup in ultra-peripheral gold-gold collisions at a center of mass energy of 200 GeV per nucleon pair. The nuclear breakup requirement selects events at small impact parameters, where higher-order corrections to the pair production cross section should be enhanced. We compare the pair kinematic distributions with two calculations: one based on the equivalent photon approximation, and the other using lowest-order quantum electrodynamics (QED); the latter includes the photon virtuality. The cross section, pair mass, rapidity and angular distributions are in good agreement with both calculations. The pair transverse momentum, $p_{T}$, spectrum agrees with the QED calculation, but not with the equivalent photon approach. We set limits on higher-order contributions to the cross section. The $e^{+}$ and $e^{−}$ $p_{T}$ spectra are similar, with no evidence for interference effects due to higher-order diagrams.
DOI: 10.17182/hepdata.98580.v1/t5
title: "Figure 3" of "Production of e+ e- pairs accompanied by nuclear dissociation in ultra-peripheral heavy ion collision."

description: The $p_{T}$ spectra of the produced electrons and positrons, along with the comparable EPA and QED calculations. In both calculations, the electron and positron spectra are identical. Spectra from the two calculations are similar; the data agrees with both of them.
description: We present the first data on $e^{+}e^{−}$ pair production accompanied by nuclear breakup in ultra-peripheral gold-gold collisions at a center of mass energy of 200 GeV per nucleon pair. The nuclear breakup requirement selects events at small impact parameters, where higher-order corrections to the pair production cross section should be enhanced. We compare the pair kinematic distributions with two calculations: one based on the equivalent photon approximation, and the other using lowest-order quantum electrodynamics (QED); the latter includes the photon virtuality. The cross section, pair mass, rapidity and angular distributions are in good agreement with both calculations. The pair transverse momentum, $p_{T}$, spectrum agrees with the QED calculation, but not with the equivalent photon approach. We set limits on higher-order contributions to the cross section. The $e^{+}$ and $e^{−}$ $p_{T}$ spectra are similar, with no evidence for interference effects due to higher-order diagrams.
DOI: 10.3535/e4h-lgs-dwj
title: Uvaria siamensis (Scheff.) L. L. Zhou, Y. C. F. Su & R. M. K. Saunders

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/hk7-2hp-y38
title: Achariaceae Harms

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.17182/hepdata.98581.v2/t1
title: "Figure 2" of "Global polarization measurement in Au+Au collisions"

description: (Color online) Invariant mass distribution for the $\Lambda$ (filled circles) and $\overline{\Lambda}$ (open squares) candidates after the quality cuts for Au+Au collisions at $\sqrt{s_{NN}}$=62.4 GeV (centrality region 0-80%).
description: The system created in non-central relativistic nucleus-nucleus collisions possesses large orbital angular momentum. Due to spin-orbit coupling, particles produced in such a system could become globally polarized along the direction of the system angular momentum. We present the results of Lambda and anti-Lambda hyperon global polarization measurements in Au+Au collisions at $\sqrt{s_NN}$=62.4 GeV and 200 GeV performed with the STAR detector at RHIC. The observed global polarization of $\Lambda$ and $\overline{\Lambda}$ hyperons in the STAR acceptance is consistent with zero within the precision of the measurements. The obtained upper limit, $|P_{\Lambda,\overline{\Lambda}}|$ &lt;= 0.02, is compared to the theoretical values discussed recently in the literature.
DOI: 10.17182/hepdata.98581.v2/t2
title: "Figure 3" of "Global polarization measurement in Au+Au collisions"

description: (Color online) Global polarization of $\Lambda$–hyperons as a function of $\Lambda$ transverse momentum $p^{\Lambda}_{t}$. Filled circles show the results for Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV (centrality region 20-70%) and open squares indicate the results for Au+Au collisions at $\sqrt{s_{NN}}$=62.4 GeV (centrality region 0-80%). Only statistical uncertainties are shown.
description: The system created in non-central relativistic nucleus-nucleus collisions possesses large orbital angular momentum. Due to spin-orbit coupling, particles produced in such a system could become globally polarized along the direction of the system angular momentum. We present the results of Lambda and anti-Lambda hyperon global polarization measurements in Au+Au collisions at $\sqrt{s_NN}$=62.4 GeV and 200 GeV performed with the STAR detector at RHIC. The observed global polarization of $\Lambda$ and $\overline{\Lambda}$ hyperons in the STAR acceptance is consistent with zero within the precision of the measurements. The obtained upper limit, $|P_{\Lambda,\overline{\Lambda}}|$ &lt;= 0.02, is compared to the theoretical values discussed recently in the literature.
DOI: 10.17182/hepdata.98581.v2/t3
title: "Figure 4" of "Global polarization measurement in Au+Au collisions"

description: (Color online) Global polarization of $\Lambda$–hyperons as a function of $\Lambda$ pseudorapidity $\eta^{\Lambda}$. Filled circles show the results for Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV (centrality region 20-70%). A constant line fit to these data points yields $P_{\Lambda}=(2.8\pm 9.6)\times 10^{-3}$ with $\chi^{2}/ndf=6.5/10$. Open squares show the results for Au+Au collisions at $\sqrt{s_{NN}}$=62.4 GeV (centrality region 0-80%). A constant line fit gives $P_{\Lambda}=(1.9\pm 8.0)\times 10^{-3}$ with $\chi^{2}/ndf=14.3/10$. Only statistical uncertainties are shown.
description: The system created in non-central relativistic nucleus-nucleus collisions possesses large orbital angular momentum. Due to spin-orbit coupling, particles produced in such a system could become globally polarized along the direction of the system angular momentum. We present the results of Lambda and anti-Lambda hyperon global polarization measurements in Au+Au collisions at $\sqrt{s_NN}$=62.4 GeV and 200 GeV performed with the STAR detector at RHIC. The observed global polarization of $\Lambda$ and $\overline{\Lambda}$ hyperons in the STAR acceptance is consistent with zero within the precision of the measurements. The obtained upper limit, $|P_{\Lambda,\overline{\Lambda}}|$ &lt;= 0.02, is compared to the theoretical values discussed recently in the literature.
DOI: 10.17182/hepdata.98581.v2/t4
title: "Figure 5" of "Global polarization measurement in Au+Au collisions"

description: (Color online) Global polarization of $\Lambda$–hyperons as a function of centrality given as fraction of the total inelastic hadronic cross section. Filled circles show the results for Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV (centrality region 20-70%) and open squares indicate the results for Au+Au collisions at $\sqrt{s_{NN}}$=62.4 GeV (centrality region 0-80%). Only statistical uncertainties are shown.
description: The system created in non-central relativistic nucleus-nucleus collisions possesses large orbital angular momentum. Due to spin-orbit coupling, particles produced in such a system could become globally polarized along the direction of the system angular momentum. We present the results of Lambda and anti-Lambda hyperon global polarization measurements in Au+Au collisions at $\sqrt{s_NN}$=62.4 GeV and 200 GeV performed with the STAR detector at RHIC. The observed global polarization of $\Lambda$ and $\overline{\Lambda}$ hyperons in the STAR acceptance is consistent with zero within the precision of the measurements. The obtained upper limit, $|P_{\Lambda,\overline{\Lambda}}|$ &lt;= 0.02, is compared to the theoretical values discussed recently in the literature.
DOI: 10.17182/hepdata.98581.v2/t5
title: "Figure 6" of "Global polarization measurement in Au+Au collisions"

description: (Color online) Global polarization of $\overline{\Lambda}$–hyperons as a function of $\overline{\Lambda}$ transverse momentum $p^{\overline{\Lambda}}_{t}$. Filled circles show the results for Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV (centrality region 20-70%) and open squares indicate the results for Au+Au collisions at $\sqrt{s_{NN}}$=62.4 GeV (centrality region 0-80%). Only statistical uncertainties are shown.
description: The system created in non-central relativistic nucleus-nucleus collisions possesses large orbital angular momentum. Due to spin-orbit coupling, particles produced in such a system could become globally polarized along the direction of the system angular momentum. We present the results of Lambda and anti-Lambda hyperon global polarization measurements in Au+Au collisions at $\sqrt{s_NN}$=62.4 GeV and 200 GeV performed with the STAR detector at RHIC. The observed global polarization of $\Lambda$ and $\overline{\Lambda}$ hyperons in the STAR acceptance is consistent with zero within the precision of the measurements. The obtained upper limit, $|P_{\Lambda,\overline{\Lambda}}|$ &lt;= 0.02, is compared to the theoretical values discussed recently in the literature.
DOI: 10.17182/hepdata.98581.v2/t6
title: "Figure 7" of "Global polarization measurement in Au+Au collisions"

description: (Color online) Global polarization of $\overline{\Lambda}$–hyperons as a function of $\overline{\Lambda}$ pseudorapidity $\eta^{\overline{\Lambda}}$. Filled circles show the results for Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV (centrality region 20-70%). A constant line fit to these data points yields $P_{\Lambda}=(1.8\pm 10.8)\times 10^{-3}$ with $\chi^{2}/ndf=5.5/10$. Open squares show the results for Au+Au collisions as $\sqrt{s_{NN}}$=62.4 GeV (centrality region 0-80%). A constant line fit gives $P_{\Lambda}=(-17.6\pm 11.1)\times 10^{-3}$ with $\chi^{2}/ndf=8.0/10$. Only statistical uncertainties are shown.
description: The system created in non-central relativistic nucleus-nucleus collisions possesses large orbital angular momentum. Due to spin-orbit coupling, particles produced in such a system could become globally polarized along the direction of the system angular momentum. We present the results of Lambda and anti-Lambda hyperon global polarization measurements in Au+Au collisions at $\sqrt{s_NN}$=62.4 GeV and 200 GeV performed with the STAR detector at RHIC. The observed global polarization of $\Lambda$ and $\overline{\Lambda}$ hyperons in the STAR acceptance is consistent with zero within the precision of the measurements. The obtained upper limit, $|P_{\Lambda,\overline{\Lambda}}|$ &lt;= 0.02, is compared to the theoretical values discussed recently in the literature.
DOI: 10.17182/hepdata.98581.v2/t7
title: "Figure 8" of "Global polarization measurement in Au+Au collisions"

description: (Color online) Global polarization of $\overline{\Lambda}$–hyperons as a function of as a function of centrality. Filled circles show the results for Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV (centrality region 20-70%) and open squares indicate the result for Au+Au collisions at $\sqrt{s_{NN}}$=62.4 GeV (centrality region 0-80%). Only statistical uncertainties are shown.
description: The system created in non-central relativistic nucleus-nucleus collisions possesses large orbital angular momentum. Due to spin-orbit coupling, particles produced in such a system could become globally polarized along the direction of the system angular momentum. We present the results of Lambda and anti-Lambda hyperon global polarization measurements in Au+Au collisions at $\sqrt{s_NN}$=62.4 GeV and 200 GeV performed with the STAR detector at RHIC. The observed global polarization of $\Lambda$ and $\overline{\Lambda}$ hyperons in the STAR acceptance is consistent with zero within the precision of the measurements. The obtained upper limit, $|P_{\Lambda,\overline{\Lambda}}|$ &lt;= 0.02, is compared to the theoretical values discussed recently in the literature.
DOI: 10.3535/95k-cvb-lan
title: Alyxia annamensis Pit.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.3535/xb8-qsb-rh9
title: Elaeocarpus L.

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.17182/hepdata.98581.v2/t10
title: "Figure 10 a" of "Global polarization measurement in Au+Au collisions"

description: (Color online) Function $A_{2}(p^{H}_{t}, \eta^{H})$ defined in (11) as a function of $\Lambda$ (filled circles) and $\overline{\Lambda}$ (open squares) transverse momentum (top) and pseudorapidity (bottom). The deviation of this function from zero defines the contribution to the observable (3) from $P^{(2)}_{H} (p^{H}_{t}, \eta^{H})$ in the expansion (6).
description: The system created in non-central relativistic nucleus-nucleus collisions possesses large orbital angular momentum. Due to spin-orbit coupling, particles produced in such a system could become globally polarized along the direction of the system angular momentum. We present the results of Lambda and anti-Lambda hyperon global polarization measurements in Au+Au collisions at $\sqrt{s_NN}$=62.4 GeV and 200 GeV performed with the STAR detector at RHIC. The observed global polarization of $\Lambda$ and $\overline{\Lambda}$ hyperons in the STAR acceptance is consistent with zero within the precision of the measurements. The obtained upper limit, $|P_{\Lambda,\overline{\Lambda}}|$ &lt;= 0.02, is compared to the theoretical values discussed recently in the literature.
DOI: 10.17182/hepdata.98581.v2/t11
title: "Figure 10 b" of "Global polarization measurement in Au+Au collisions"

description: (Color online) Function $A_{2}(p^{H}_{t}, \eta^{H})$ defined in (11) as a function of $\Lambda$ (filled circles) and $\overline{\Lambda}$ (open squares) transverse momentum (top) and pseudorapidity (bottom). The deviation of this function from zero defines the contribution to the observable (3) from $P^{(2)}_{H} (p^{H}_{t}, \eta^{H})$ in the expansion (6).
description: The system created in non-central relativistic nucleus-nucleus collisions possesses large orbital angular momentum. Due to spin-orbit coupling, particles produced in such a system could become globally polarized along the direction of the system angular momentum. We present the results of Lambda and anti-Lambda hyperon global polarization measurements in Au+Au collisions at $\sqrt{s_NN}$=62.4 GeV and 200 GeV performed with the STAR detector at RHIC. The observed global polarization of $\Lambda$ and $\overline{\Lambda}$ hyperons in the STAR acceptance is consistent with zero within the precision of the measurements. The obtained upper limit, $|P_{\Lambda,\overline{\Lambda}}|$ &lt;= 0.02, is compared to the theoretical values discussed recently in the literature.
DOI: 10.17182/hepdata.98581.v2/t8
title: "Figure 9 a" of "Global polarization measurement in Au+Au collisions"

description: (Color online) Acceptance correction function $A_{0}(p^{H}_{t}, \eta^{H})$ defined in (10) as a function of $\Lambda$ (filled circles) and $\overline{\Lambda}$ (open squares) transverse momentum (top) and pseudorapidity (bottom). The deviation of this function from unity affects the overall scale of the measured global polarization according to Eq. 9. See the text for details and discussions on $A_{0}$ $p^{H}_{t}$ and $\eta^{H}$ dependence.
description: The system created in non-central relativistic nucleus-nucleus collisions possesses large orbital angular momentum. Due to spin-orbit coupling, particles produced in such a system could become globally polarized along the direction of the system angular momentum. We present the results of Lambda and anti-Lambda hyperon global polarization measurements in Au+Au collisions at $\sqrt{s_NN}$=62.4 GeV and 200 GeV performed with the STAR detector at RHIC. The observed global polarization of $\Lambda$ and $\overline{\Lambda}$ hyperons in the STAR acceptance is consistent with zero within the precision of the measurements. The obtained upper limit, $|P_{\Lambda,\overline{\Lambda}}|$ &lt;= 0.02, is compared to the theoretical values discussed recently in the literature.
DOI: 10.17182/hepdata.98581.v2/t9
title: "Figure 9 b" of "Global polarization measurement in Au+Au collisions"

description: (Color online) Acceptance correction function $A_{0}(p^{H}_{t}, \eta^{H})$ defined in (10) as a function of $\Lambda$ (filled circles) and $\overline{\Lambda}$ (open squares) transverse momentum (top) and pseudorapidity (bottom). The deviation of this function from unity affects the overall scale of the measured global polarization according to Eq. 9. See the text for details and discussions on $A_{0}$ $p^{H}_{t}$ and $\eta^{H}$ dependence.
description: The system created in non-central relativistic nucleus-nucleus collisions possesses large orbital angular momentum. Due to spin-orbit coupling, particles produced in such a system could become globally polarized along the direction of the system angular momentum. We present the results of Lambda and anti-Lambda hyperon global polarization measurements in Au+Au collisions at $\sqrt{s_NN}$=62.4 GeV and 200 GeV performed with the STAR detector at RHIC. The observed global polarization of $\Lambda$ and $\overline{\Lambda}$ hyperons in the STAR acceptance is consistent with zero within the precision of the measurements. The obtained upper limit, $|P_{\Lambda,\overline{\Lambda}}|$ &lt;= 0.02, is compared to the theoretical values discussed recently in the literature.
DOI: 10.25549/vercoutere-ouc1sto1770185
title: About Al Vercoutere

description: Al Vercoutere graduated from the University of Southern California (USC) in 1954 as an occupational therapist and later completed post-graduate work at USC and the University of California, Los Angeles. Vercoutere was the first occupational therapist at the Atascadero State Hospital (ASH), a position he assumed shortly after his graduation from USC in 1954. During his time at ASH, he was the Assistant Supervisor of Rehabilitation. Vercoutere left ASH in 1961 to become Chief of Rehabilitation Services, Program Director and Community Liaison Officer at Camarillo State Hospital. Vercoutere also taught at Ventura and Oxnard Community Colleges and the San Fernando Valley State College (now California State University, Northridge).
DOI: 10.3535/tbs-f9a-2vt
title: Fagaceae

description: Digital Specimen for the physical specimen hosted at Botanic Garden and Botanical Museum Berlin.
DOI: 10.17182/hepdata.98581.v1/t1
title: "Figure 2" of "Global polarization measurement in Au+Au collisions"

description: (Color online) Invariant mass distribution for the $\Lambda$ (filled circles) and $\overline{\Lambda}$ (open squares) candidates after the quality cuts for Au+Au collisions at $\sqrt{s_{NN}}$=62.4 GeV (centrality region 0-80%).
description: The system created in non-central relativistic nucleus-nucleus collisions possesses large orbital angular momentum. Due to spin-orbit coupling, particles produced in such a system could become globally polarized along the direction of the system angular momentum. We present the results of Lambda and anti-Lambda hyperon global polarization measurements in Au+Au collisions at $\sqrt{s_NN}$=62.4 GeV and 200 GeV performed with the STAR detector at RHIC. The observed global polarization of $\Lambda$ and $\overline{\Lambda}$ hyperons in the STAR acceptance is consistent with zero within the precision of the measurements. The obtained upper limit, $|P_{\Lambda,\overline{\Lambda}}|$ &lt;= 0.02, is compared to the theoretical values discussed recently in the literature.
DOI: 10.17182/hepdata.98581.v1/t2
title: "Figure 3" of "Global polarization measurement in Au+Au collisions"

description: (Color online) Global polarization of $\Lambda$–hyperons as a function of $\Lambda$ transverse momentum $p^{\Lambda}_{t}$. Filled circles show the results for Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV (centrality region 20-70%) and open squares indicate the results for Au+Au collisions at $\sqrt{s_{NN}}$=62.4 GeV (centrality region 0-80%). Only statistical uncertainties are shown.
description: The system created in non-central relativistic nucleus-nucleus collisions possesses large orbital angular momentum. Due to spin-orbit coupling, particles produced in such a system could become globally polarized along the direction of the system angular momentum. We present the results of Lambda and anti-Lambda hyperon global polarization measurements in Au+Au collisions at $\sqrt{s_NN}$=62.4 GeV and 200 GeV performed with the STAR detector at RHIC. The observed global polarization of $\Lambda$ and $\overline{\Lambda}$ hyperons in the STAR acceptance is consistent with zero within the precision of the measurements. The obtained upper limit, $|P_{\Lambda,\overline{\Lambda}}|$ &lt;= 0.02, is compared to the theoretical values discussed recently in the literature.
DOI: 10.17182/hepdata.98581.v1/t3
title: "Figure 4" of "Global polarization measurement in Au+Au collisions"

description: (Color online) Global polarization of $\Lambda$–hyperons as a function of $\Lambda$ pseudorapidity $\eta^{\Lambda}$. Filled circles show the results for Au+Au collisions at $\sqrt{s_{NN}}$=200 GeV (centrality region 20-70%). A constant line fit to these data points yields $P_{\Lambda}=(2.8\pm 9.6)\times 10^{-3}$ with $\chi^{2}/ndf=6.5/10$. Open squares show the results for Au+Au collisions at $\sqrt{s_{NN}}$=62.4 GeV (centrality region 0-80%). A constant line fit gives $P_{\Lambda}=(1.9\pm 8.0)\times 10^{-3}$ with $\chi^{2}/ndf=14.3/10$. Only statistical uncertainties are shown.
description: The system created in non-central relativistic nucleus-nucleus collisions possesses large orbital angular momentum. Due to spin-orbit coupling, particles produced in such a system could become globally polarized along the direction of the system angular momentum. We present the results of Lambda and anti-Lambda hyperon global polarization measurements in Au+Au collisions at $\sqrt{s_NN}$=62.4 GeV and 200 GeV performed with the STAR detector at RHIC. The observed global polarization of $\Lambda$ and $\overline{\Lambda}$ hyperons in the STAR acceptance is consistent with zero within the precision of the measurements. The obtained upper limit, $|P_{\Lambda,\overline{\Lambda}}|$ &lt;= 0.02, is compared to the theoretical values discussed recently in the literature.