cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.143197.v1/t3
title: "Figure 4a-3" of "Suppression of back-to-back hadron pairs at forward rapidity in d+Au Collisions at sqrt(s_NN)=200 GeV"

description: $J_{dA}$ versus $x^{frag}_{Au}$ for $d$+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV for different centrality classes.
description: Back-to-back hadron pair yields in $d$+Au and $p$+$p$ collisions at $\sqrt{s_{NN}}$ = 200 GeV were measured with the PHENIX detector at the Relativistic Heavy Ion Collider. Rapidity separated hadron pairs were detected with the trigger hadron at pseudorapidity $|\eta|$ &lt; 0.35 and the associated hadron at forward rapidity (deuteron direction, 3.0 &lt; $\eta$ &lt; 3.8). Pairs were also detected with both hadrons measured at forward rapidity; in this case the yield of back-to-back hadron pairs in $d$+Au collisions with small impact parameters is observed to be suppressed by a factor of 10 relative to $p$+$p$ collisions. The kinematics of these pairs is expected to probe partons in the Au nucleus with low fraction $x$ of the nucleon momenta, where the gluon densities rise sharply. The observed suppression as a function of nuclear thickness, $p_T$, and $\eta$ points to cold nuclear matter effects arising at high parton densities.
DOI: 10.17182/hepdata.143197.v1/t4
title: "Figure 4b-1" of "Suppression of back-to-back hadron pairs at forward rapidity in d+Au Collisions at sqrt(s_NN)=200 GeV"

description: $J_{dA}$ versus $x^{frag}_{Au}$ for $d$+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV for different centrality classes.
description: Back-to-back hadron pair yields in $d$+Au and $p$+$p$ collisions at $\sqrt{s_{NN}}$ = 200 GeV were measured with the PHENIX detector at the Relativistic Heavy Ion Collider. Rapidity separated hadron pairs were detected with the trigger hadron at pseudorapidity $|\eta|$ &lt; 0.35 and the associated hadron at forward rapidity (deuteron direction, 3.0 &lt; $\eta$ &lt; 3.8). Pairs were also detected with both hadrons measured at forward rapidity; in this case the yield of back-to-back hadron pairs in $d$+Au collisions with small impact parameters is observed to be suppressed by a factor of 10 relative to $p$+$p$ collisions. The kinematics of these pairs is expected to probe partons in the Au nucleus with low fraction $x$ of the nucleon momenta, where the gluon densities rise sharply. The observed suppression as a function of nuclear thickness, $p_T$, and $\eta$ points to cold nuclear matter effects arising at high parton densities.
DOI: 10.17182/hepdata.143197.v1/t5
title: "Figure 4b-2" of "Suppression of back-to-back hadron pairs at forward rapidity in d+Au Collisions at sqrt(s_NN)=200 GeV"

description: $J_{dA}$ versus $x^{frag}_{Au}$ for $d$+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV for different centrality classes.
description: Back-to-back hadron pair yields in $d$+Au and $p$+$p$ collisions at $\sqrt{s_{NN}}$ = 200 GeV were measured with the PHENIX detector at the Relativistic Heavy Ion Collider. Rapidity separated hadron pairs were detected with the trigger hadron at pseudorapidity $|\eta|$ &lt; 0.35 and the associated hadron at forward rapidity (deuteron direction, 3.0 &lt; $\eta$ &lt; 3.8). Pairs were also detected with both hadrons measured at forward rapidity; in this case the yield of back-to-back hadron pairs in $d$+Au collisions with small impact parameters is observed to be suppressed by a factor of 10 relative to $p$+$p$ collisions. The kinematics of these pairs is expected to probe partons in the Au nucleus with low fraction $x$ of the nucleon momenta, where the gluon densities rise sharply. The observed suppression as a function of nuclear thickness, $p_T$, and $\eta$ points to cold nuclear matter effects arising at high parton densities.
DOI: 10.17182/hepdata.143197.v1/t6
title: "Figure 4b-3" of "Suppression of back-to-back hadron pairs at forward rapidity in d+Au Collisions at sqrt(s_NN)=200 GeV"

description: $J_{dA}$ versus $x^{frag}_{Au}$ for $d$+Au collisions at $\sqrt{s_{NN}}$ = 200 GeV for different centrality classes.
description: Back-to-back hadron pair yields in $d$+Au and $p$+$p$ collisions at $\sqrt{s_{NN}}$ = 200 GeV were measured with the PHENIX detector at the Relativistic Heavy Ion Collider. Rapidity separated hadron pairs were detected with the trigger hadron at pseudorapidity $|\eta|$ &lt; 0.35 and the associated hadron at forward rapidity (deuteron direction, 3.0 &lt; $\eta$ &lt; 3.8). Pairs were also detected with both hadrons measured at forward rapidity; in this case the yield of back-to-back hadron pairs in $d$+Au collisions with small impact parameters is observed to be suppressed by a factor of 10 relative to $p$+$p$ collisions. The kinematics of these pairs is expected to probe partons in the Au nucleus with low fraction $x$ of the nucleon momenta, where the gluon densities rise sharply. The observed suppression as a function of nuclear thickness, $p_T$, and $\eta$ points to cold nuclear matter effects arising at high parton densities.
DOI: 10.17182/hepdata.143197.v1/t7
title: "Table 1" of "Suppression of back-to-back hadron pairs at forward rapidity in d+Au Collisions at sqrt(s_NN)=200 GeV"

description: $p_T$ versus $R_{dA}$ for $\pi^0$ and range of 3.0 &lt; $\eta$ &lt; 3.8.
description: Back-to-back hadron pair yields in $d$+Au and $p$+$p$ collisions at $\sqrt{s_{NN}}$ = 200 GeV were measured with the PHENIX detector at the Relativistic Heavy Ion Collider. Rapidity separated hadron pairs were detected with the trigger hadron at pseudorapidity $|\eta|$ &lt; 0.35 and the associated hadron at forward rapidity (deuteron direction, 3.0 &lt; $\eta$ &lt; 3.8). Pairs were also detected with both hadrons measured at forward rapidity; in this case the yield of back-to-back hadron pairs in $d$+Au collisions with small impact parameters is observed to be suppressed by a factor of 10 relative to $p$+$p$ collisions. The kinematics of these pairs is expected to probe partons in the Au nucleus with low fraction $x$ of the nucleon momenta, where the gluon densities rise sharply. The observed suppression as a function of nuclear thickness, $p_T$, and $\eta$ points to cold nuclear matter effects arising at high parton densities.
DOI: 10.17182/hepdata.143197.v1/t8
title: "Table 2" of "Suppression of back-to-back hadron pairs at forward rapidity in d+Au Collisions at sqrt(s_NN)=200 GeV"

description: PHENIX $\pi^0$ invariant cross-section for $p$+$p$ collisions for range 3.0 &lt; $\eta$ &lt; 3.8.
description: Back-to-back hadron pair yields in $d$+Au and $p$+$p$ collisions at $\sqrt{s_{NN}}$ = 200 GeV were measured with the PHENIX detector at the Relativistic Heavy Ion Collider. Rapidity separated hadron pairs were detected with the trigger hadron at pseudorapidity $|\eta|$ &lt; 0.35 and the associated hadron at forward rapidity (deuteron direction, 3.0 &lt; $\eta$ &lt; 3.8). Pairs were also detected with both hadrons measured at forward rapidity; in this case the yield of back-to-back hadron pairs in $d$+Au collisions with small impact parameters is observed to be suppressed by a factor of 10 relative to $p$+$p$ collisions. The kinematics of these pairs is expected to probe partons in the Au nucleus with low fraction $x$ of the nucleon momenta, where the gluon densities rise sharply. The observed suppression as a function of nuclear thickness, $p_T$, and $\eta$ points to cold nuclear matter effects arising at high parton densities.
DOI: 10.17182/hepdata.143206.v1/t1
title: "Fig. 8" of "Measurement of single electron event anisotropy in Au + Au collisions at s(NN)**(1/2) = 200-GeV."

description: Transverse momentum dependence of inclusive electron $v_2$ and heavy quark electron $v_2$.
description: The transverse momentum dependence of the azimuthal anisotropy parameter $v_2$, the second harmonic of the azimuthal distribution, for electrons at midrapidity ( $|\eta| &lt; 0.35$) has been measured with the PHENIX detector in Au+Au collisions at $\sqrt{s_{NN}}$=200. The measurement was made with respect to the reaction plane defined at high rapidities ( $|\eta|$ = 3.1—3.9). From the result we have measured the $v_2$ of electrons from heavy flavor decay after subtraction of the $v_2$ of electrons from other sources such as photon conversions and Dalitz decay from light neutral mesons. We observe a nonzero single electron $v_2$ with a 90% confidence level in the intermediate- $p_T$ region. The precision of the present data set does not permit us to conclude definitively that heavy quarks exhibit thermalization with the transverse flow of the bulk matter.
DOI: 10.17182/hepdata.143251.v1/t1
title: "DarkPhoton_ObservedContour_90CL" of "Search for Dark Photons with the FASER detector at the LHC"

description: 90% confidence level observed exclusion contour in the dark photon parameter space.
description: No data abstract available.
DOI: 10.17182/hepdata.143251.v1/t2
title: "DarkPhoton_ExpectedContour_90CL" of "Search for Dark Photons with the FASER detector at the LHC"

description: 90% confidence level observed exclusion contour in the dark photon parameter space.
description: No data abstract available.
DOI: 10.17182/hepdata.143251.v1/t3
title: "BLObservedContour90CL" of "Search for Dark Photons with the FASER detector at the LHC"

description: 90% confidence level expected exclusion contour in the B-L gauge boson parameter space.
description: No data abstract available.
DOI: 10.17182/hepdata.143251.v1/t4
title: "BLExpectedContour90CL" of "Search for Dark Photons with the FASER detector at the LHC"

description: 90% confidence level expected exclusion contour in the B-L gauge boson parameter space.
description: No data abstract available.
DOI: 10.17182/hepdata.143251.v1/t5
title: "darkphoton_signalEff" of "Search for Dark Photons with the FASER detector at the LHC"

description: Selection efficiencies for dark photon signal events decaying within the FASER acceptance with a radius &lt; 10 cm as a function of dark photon mass and kinematic mixing.
description: No data abstract available.
DOI: 10.17182/hepdata.143252.v1/t1
title: "Figure 4a" of "Nonperturbative-transverse-momentum effects and evolution in dihadron and direct photon-hadron angular correlations in $p$$+$$p$ collisions at $\sqrt{s}$=510 GeV"

description: Per-trigger yield of charged hadrons shown as a function of the azimuthal angle between the $\pi^0$ trigger particle and associated charged hadron.
description: Dihadron and isolated direct photon-hadron angular correlations are measured in $p$+$p$ collisions at $\sqrt{s}$ = 510 GeV. Correlations of charged hadrons of 0.7 &lt; $p_T$ &lt; 10 GeV/$c$ with $\pi^0$ mesons of 4 &lt; $p_T$ &lt; 15 GeV/$c$ or isolated direct photons of 7 &lt; $p_T$ &lt; 15 GeV/$c$ are used to study nonperturbative effects generated by initial-state partonic transverse momentum and final-state transverse momentum from fragmentation. The nonperturbative behavior is characterized by measuring the out-of-plane transverse momentum component $p_{out}$ perpendicular to the axis of the trigger particle, which is the high-$p_T$ direct photon or $\pi^0$. Nonperturbative evolution effects are extracted from Gaussian fits to the away-side inclusive-charged-hadron yields for different trigger-particle transverse momenta ($p^{trig}_T$). The Gaussian widths and root mean square of $p_{out}$ are reported as a function of the interaction hard scale $p^{trig}_T$ to investigate possible transverse-momentum-dependent evolution differences between the $\pi^0$-h$^\pm$ and direct photon-h$^\pm$ correlations and factorization breaking effects. The widths are found to decrease with $p^{trig}_T$, which indicates that the Collins-Soper-Sterman soft factor is not driving the evolution with the hard scale in nearly back-to-back dihadron and direct photonhadron production in $p$+$p$ collisions. This behavior is in contrast to Drell-Yan and semi-inclusive deep-inelastic scattering measurements.
DOI: 10.17182/hepdata.143252.v1/t2
title: "Figure 4b" of "Nonperturbative-transverse-momentum effects and evolution in dihadron and direct photon-hadron angular correlations in $p$$+$$p$ collisions at $\sqrt{s}$=510 GeV"

description: Per-trigger yield of charged hadrons shown as a function of the azimuthal angle between the direct photon trigger particle and associated charged hadron.
description: Dihadron and isolated direct photon-hadron angular correlations are measured in $p$+$p$ collisions at $\sqrt{s}$ = 510 GeV. Correlations of charged hadrons of 0.7 &lt; $p_T$ &lt; 10 GeV/$c$ with $\pi^0$ mesons of 4 &lt; $p_T$ &lt; 15 GeV/$c$ or isolated direct photons of 7 &lt; $p_T$ &lt; 15 GeV/$c$ are used to study nonperturbative effects generated by initial-state partonic transverse momentum and final-state transverse momentum from fragmentation. The nonperturbative behavior is characterized by measuring the out-of-plane transverse momentum component $p_{out}$ perpendicular to the axis of the trigger particle, which is the high-$p_T$ direct photon or $\pi^0$. Nonperturbative evolution effects are extracted from Gaussian fits to the away-side inclusive-charged-hadron yields for different trigger-particle transverse momenta ($p^{trig}_T$). The Gaussian widths and root mean square of $p_{out}$ are reported as a function of the interaction hard scale $p^{trig}_T$ to investigate possible transverse-momentum-dependent evolution differences between the $\pi^0$-h$^\pm$ and direct photon-h$^\pm$ correlations and factorization breaking effects. The widths are found to decrease with $p^{trig}_T$, which indicates that the Collins-Soper-Sterman soft factor is not driving the evolution with the hard scale in nearly back-to-back dihadron and direct photonhadron production in $p$+$p$ collisions. This behavior is in contrast to Drell-Yan and semi-inclusive deep-inelastic scattering measurements.
DOI: 10.17182/hepdata.143252.v1/t3
title: "Figure 6a" of "Nonperturbative-transverse-momentum effects and evolution in dihadron and direct photon-hadron angular correlations in $p$$+$$p$ collisions at $\sqrt{s}$=510 GeV"

description: $\pi^0$-h$^{\pm}$ $\sqrt{\langle p^2_{out} \rangle}$ values from fits to the $\Delta \phi$ correlations.
description: Dihadron and isolated direct photon-hadron angular correlations are measured in $p$+$p$ collisions at $\sqrt{s}$ = 510 GeV. Correlations of charged hadrons of 0.7 &lt; $p_T$ &lt; 10 GeV/$c$ with $\pi^0$ mesons of 4 &lt; $p_T$ &lt; 15 GeV/$c$ or isolated direct photons of 7 &lt; $p_T$ &lt; 15 GeV/$c$ are used to study nonperturbative effects generated by initial-state partonic transverse momentum and final-state transverse momentum from fragmentation. The nonperturbative behavior is characterized by measuring the out-of-plane transverse momentum component $p_{out}$ perpendicular to the axis of the trigger particle, which is the high-$p_T$ direct photon or $\pi^0$. Nonperturbative evolution effects are extracted from Gaussian fits to the away-side inclusive-charged-hadron yields for different trigger-particle transverse momenta ($p^{trig}_T$). The Gaussian widths and root mean square of $p_{out}$ are reported as a function of the interaction hard scale $p^{trig}_T$ to investigate possible transverse-momentum-dependent evolution differences between the $\pi^0$-h$^\pm$ and direct photon-h$^\pm$ correlations and factorization breaking effects. The widths are found to decrease with $p^{trig}_T$, which indicates that the Collins-Soper-Sterman soft factor is not driving the evolution with the hard scale in nearly back-to-back dihadron and direct photonhadron production in $p$+$p$ collisions. This behavior is in contrast to Drell-Yan and semi-inclusive deep-inelastic scattering measurements.
DOI: 10.17182/hepdata.143252.v1/t4
title: "Figure 6b" of "Nonperturbative-transverse-momentum effects and evolution in dihadron and direct photon-hadron angular correlations in $p$$+$$p$ collisions at $\sqrt{s}$=510 GeV"

description: $\pi^0$-h$^{\pm}$ $\sqrt{\langle p^2_{out} \rangle}$ values from fits to the $\Delta \phi$ correlations.
description: Dihadron and isolated direct photon-hadron angular correlations are measured in $p$+$p$ collisions at $\sqrt{s}$ = 510 GeV. Correlations of charged hadrons of 0.7 &lt; $p_T$ &lt; 10 GeV/$c$ with $\pi^0$ mesons of 4 &lt; $p_T$ &lt; 15 GeV/$c$ or isolated direct photons of 7 &lt; $p_T$ &lt; 15 GeV/$c$ are used to study nonperturbative effects generated by initial-state partonic transverse momentum and final-state transverse momentum from fragmentation. The nonperturbative behavior is characterized by measuring the out-of-plane transverse momentum component $p_{out}$ perpendicular to the axis of the trigger particle, which is the high-$p_T$ direct photon or $\pi^0$. Nonperturbative evolution effects are extracted from Gaussian fits to the away-side inclusive-charged-hadron yields for different trigger-particle transverse momenta ($p^{trig}_T$). The Gaussian widths and root mean square of $p_{out}$ are reported as a function of the interaction hard scale $p^{trig}_T$ to investigate possible transverse-momentum-dependent evolution differences between the $\pi^0$-h$^\pm$ and direct photon-h$^\pm$ correlations and factorization breaking effects. The widths are found to decrease with $p^{trig}_T$, which indicates that the Collins-Soper-Sterman soft factor is not driving the evolution with the hard scale in nearly back-to-back dihadron and direct photonhadron production in $p$+$p$ collisions. This behavior is in contrast to Drell-Yan and semi-inclusive deep-inelastic scattering measurements.
DOI: 10.17182/hepdata.143252.v1/t5
title: "Figure 9a-1" of "Nonperturbative-transverse-momentum effects and evolution in dihadron and direct photon-hadron angular correlations in $p$$+$$p$ collisions at $\sqrt{s}$=510 GeV"

description: $\pi^0$ per trigger yields as a function of $p_{out}$.
description: Dihadron and isolated direct photon-hadron angular correlations are measured in $p$+$p$ collisions at $\sqrt{s}$ = 510 GeV. Correlations of charged hadrons of 0.7 &lt; $p_T$ &lt; 10 GeV/$c$ with $\pi^0$ mesons of 4 &lt; $p_T$ &lt; 15 GeV/$c$ or isolated direct photons of 7 &lt; $p_T$ &lt; 15 GeV/$c$ are used to study nonperturbative effects generated by initial-state partonic transverse momentum and final-state transverse momentum from fragmentation. The nonperturbative behavior is characterized by measuring the out-of-plane transverse momentum component $p_{out}$ perpendicular to the axis of the trigger particle, which is the high-$p_T$ direct photon or $\pi^0$. Nonperturbative evolution effects are extracted from Gaussian fits to the away-side inclusive-charged-hadron yields for different trigger-particle transverse momenta ($p^{trig}_T$). The Gaussian widths and root mean square of $p_{out}$ are reported as a function of the interaction hard scale $p^{trig}_T$ to investigate possible transverse-momentum-dependent evolution differences between the $\pi^0$-h$^\pm$ and direct photon-h$^\pm$ correlations and factorization breaking effects. The widths are found to decrease with $p^{trig}_T$, which indicates that the Collins-Soper-Sterman soft factor is not driving the evolution with the hard scale in nearly back-to-back dihadron and direct photonhadron production in $p$+$p$ collisions. This behavior is in contrast to Drell-Yan and semi-inclusive deep-inelastic scattering measurements.
DOI: 10.17182/hepdata.143252.v1/t6
title: "Figure 9a-2" of "Nonperturbative-transverse-momentum effects and evolution in dihadron and direct photon-hadron angular correlations in $p$$+$$p$ collisions at $\sqrt{s}$=510 GeV"

description: $\pi^0$ per trigger yields as a function of $p_{out}$.
description: Dihadron and isolated direct photon-hadron angular correlations are measured in $p$+$p$ collisions at $\sqrt{s}$ = 510 GeV. Correlations of charged hadrons of 0.7 &lt; $p_T$ &lt; 10 GeV/$c$ with $\pi^0$ mesons of 4 &lt; $p_T$ &lt; 15 GeV/$c$ or isolated direct photons of 7 &lt; $p_T$ &lt; 15 GeV/$c$ are used to study nonperturbative effects generated by initial-state partonic transverse momentum and final-state transverse momentum from fragmentation. The nonperturbative behavior is characterized by measuring the out-of-plane transverse momentum component $p_{out}$ perpendicular to the axis of the trigger particle, which is the high-$p_T$ direct photon or $\pi^0$. Nonperturbative evolution effects are extracted from Gaussian fits to the away-side inclusive-charged-hadron yields for different trigger-particle transverse momenta ($p^{trig}_T$). The Gaussian widths and root mean square of $p_{out}$ are reported as a function of the interaction hard scale $p^{trig}_T$ to investigate possible transverse-momentum-dependent evolution differences between the $\pi^0$-h$^\pm$ and direct photon-h$^\pm$ correlations and factorization breaking effects. The widths are found to decrease with $p^{trig}_T$, which indicates that the Collins-Soper-Sterman soft factor is not driving the evolution with the hard scale in nearly back-to-back dihadron and direct photonhadron production in $p$+$p$ collisions. This behavior is in contrast to Drell-Yan and semi-inclusive deep-inelastic scattering measurements.
DOI: 10.17182/hepdata.143252.v1/t7
title: "Figure 9a-3" of "Nonperturbative-transverse-momentum effects and evolution in dihadron and direct photon-hadron angular correlations in $p$$+$$p$ collisions at $\sqrt{s}$=510 GeV"

description: $\pi^0$ per trigger yields as a function of $p_{out}$.
description: Dihadron and isolated direct photon-hadron angular correlations are measured in $p$+$p$ collisions at $\sqrt{s}$ = 510 GeV. Correlations of charged hadrons of 0.7 &lt; $p_T$ &lt; 10 GeV/$c$ with $\pi^0$ mesons of 4 &lt; $p_T$ &lt; 15 GeV/$c$ or isolated direct photons of 7 &lt; $p_T$ &lt; 15 GeV/$c$ are used to study nonperturbative effects generated by initial-state partonic transverse momentum and final-state transverse momentum from fragmentation. The nonperturbative behavior is characterized by measuring the out-of-plane transverse momentum component $p_{out}$ perpendicular to the axis of the trigger particle, which is the high-$p_T$ direct photon or $\pi^0$. Nonperturbative evolution effects are extracted from Gaussian fits to the away-side inclusive-charged-hadron yields for different trigger-particle transverse momenta ($p^{trig}_T$). The Gaussian widths and root mean square of $p_{out}$ are reported as a function of the interaction hard scale $p^{trig}_T$ to investigate possible transverse-momentum-dependent evolution differences between the $\pi^0$-h$^\pm$ and direct photon-h$^\pm$ correlations and factorization breaking effects. The widths are found to decrease with $p^{trig}_T$, which indicates that the Collins-Soper-Sterman soft factor is not driving the evolution with the hard scale in nearly back-to-back dihadron and direct photonhadron production in $p$+$p$ collisions. This behavior is in contrast to Drell-Yan and semi-inclusive deep-inelastic scattering measurements.