cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.145759.v1/t25
title: "Figure 10 Dplus y range 1" of "Charm production and fragmentation fractions at midrapidity in pp collisions at $\sqrt{s} = 13$ TeV"

description: $\mathrm{D}^{+}$ ratio |$y$| &lt; 0.5 / $3 &lt; y &lt; 3.5$ in pp collisions at $\sqrt{s}$ = 13 TeV
description: Measurements of the production cross sections of prompt $\mathrm{D}^0$, $\mathrm{D}^+$, $\mathrm{D}^{*+}$, $\mathrm{D}^+_\mathrm{c}$, $\Lambda^+_\mathrm{c}$, and $\Xi^+_\mathrm{c}$ charm hadrons at midrapidity in proton$-$proton collisions at $\sqrt{s}=13$ TeV with the ALICE detector are presented. The D-meson cross sections as a function of transverse momentum ($p_\mathrm{T}$) are provided with improved precision and granularity. The ratios of $p_\mathrm{T}$-differential meson production cross sections based on this publication and on measurements at different rapidity and collision energy provide a constraint on gluon parton distribution functions at low values of Bjorken-$x$ ($10^{-5}-10^{-4}$). The measurements of $\Lambda^+_\mathrm{c}$ ($\Xi^+_\mathrm{c}$) baryon production extend the measured $p_\mathrm{T}$ intervals down to $p_\mathrm{T}=0(3)$~GeV$/c$. These measurements are used to determine the charm-quark fragmentation fractions and the $\mathrm{c}\bar{\mathrm{c}}$ production cross section at midrapidity ($|y|&lt;0.5$) based on the sum of the cross sections of the weakly-decaying ground-state charm hadrons $\mathrm{D}^0$, $\mathrm{D}^+$, $\mathrm{D}^+_\mathrm{c}$, $\Lambda^+_\mathrm{c}$, $\Xi^0_\mathrm{c}$ and, for the first time, $\Xi^+_\mathrm{c}$, and of the strongly-decaying $J/\psi$ mesons. The first measurements of $\Xi^+_\mathrm{c}$ and $\Sigma_\mathrm{c}^{0,+,++}$ fragmentation fractions at midrapidity are also reported. A significantly larger fraction of charm quarks hadronising to baryons is found compared to $\mathrm{e}^+\mathrm{e}^-$ and ep collisions. The $\mathrm{c}\bar{\mathrm{c}}$ production cross section at midrapidity is found to be at the upper bound of state-of-the-art perturbative QCD calculations.
DOI: 10.17182/hepdata.145759.v1/t26
title: "Figure 10 Dplus y range 2" of "Charm production and fragmentation fractions at midrapidity in pp collisions at $\sqrt{s} = 13$ TeV"

description: $\mathrm{D}^{+}$ ratio |$y$| &lt; 0.5 / $4 &lt; y &lt; 4.5$ in pp collisions at $\sqrt{s}$ = 13 TeV
description: Measurements of the production cross sections of prompt $\mathrm{D}^0$, $\mathrm{D}^+$, $\mathrm{D}^{*+}$, $\mathrm{D}^+_\mathrm{c}$, $\Lambda^+_\mathrm{c}$, and $\Xi^+_\mathrm{c}$ charm hadrons at midrapidity in proton$-$proton collisions at $\sqrt{s}=13$ TeV with the ALICE detector are presented. The D-meson cross sections as a function of transverse momentum ($p_\mathrm{T}$) are provided with improved precision and granularity. The ratios of $p_\mathrm{T}$-differential meson production cross sections based on this publication and on measurements at different rapidity and collision energy provide a constraint on gluon parton distribution functions at low values of Bjorken-$x$ ($10^{-5}-10^{-4}$). The measurements of $\Lambda^+_\mathrm{c}$ ($\Xi^+_\mathrm{c}$) baryon production extend the measured $p_\mathrm{T}$ intervals down to $p_\mathrm{T}=0(3)$~GeV$/c$. These measurements are used to determine the charm-quark fragmentation fractions and the $\mathrm{c}\bar{\mathrm{c}}$ production cross section at midrapidity ($|y|&lt;0.5$) based on the sum of the cross sections of the weakly-decaying ground-state charm hadrons $\mathrm{D}^0$, $\mathrm{D}^+$, $\mathrm{D}^+_\mathrm{c}$, $\Lambda^+_\mathrm{c}$, $\Xi^0_\mathrm{c}$ and, for the first time, $\Xi^+_\mathrm{c}$, and of the strongly-decaying $J/\psi$ mesons. The first measurements of $\Xi^+_\mathrm{c}$ and $\Sigma_\mathrm{c}^{0,+,++}$ fragmentation fractions at midrapidity are also reported. A significantly larger fraction of charm quarks hadronising to baryons is found compared to $\mathrm{e}^+\mathrm{e}^-$ and ep collisions. The $\mathrm{c}\bar{\mathrm{c}}$ production cross section at midrapidity is found to be at the upper bound of state-of-the-art perturbative QCD calculations.
DOI: 10.17182/hepdata.145759.v1/t27
title: "Figure 10 Dstar y range 0" of "Charm production and fragmentation fractions at midrapidity in pp collisions at $\sqrt{s} = 13$ TeV"

description: $\mathrm{D}^{*+}$ ratio |$y$| &lt; 0.5 / $2 &lt; y &lt; 2.5$ in pp collisions at $\sqrt{s}$ = 13 TeV
description: Measurements of the production cross sections of prompt $\mathrm{D}^0$, $\mathrm{D}^+$, $\mathrm{D}^{*+}$, $\mathrm{D}^+_\mathrm{c}$, $\Lambda^+_\mathrm{c}$, and $\Xi^+_\mathrm{c}$ charm hadrons at midrapidity in proton$-$proton collisions at $\sqrt{s}=13$ TeV with the ALICE detector are presented. The D-meson cross sections as a function of transverse momentum ($p_\mathrm{T}$) are provided with improved precision and granularity. The ratios of $p_\mathrm{T}$-differential meson production cross sections based on this publication and on measurements at different rapidity and collision energy provide a constraint on gluon parton distribution functions at low values of Bjorken-$x$ ($10^{-5}-10^{-4}$). The measurements of $\Lambda^+_\mathrm{c}$ ($\Xi^+_\mathrm{c}$) baryon production extend the measured $p_\mathrm{T}$ intervals down to $p_\mathrm{T}=0(3)$~GeV$/c$. These measurements are used to determine the charm-quark fragmentation fractions and the $\mathrm{c}\bar{\mathrm{c}}$ production cross section at midrapidity ($|y|&lt;0.5$) based on the sum of the cross sections of the weakly-decaying ground-state charm hadrons $\mathrm{D}^0$, $\mathrm{D}^+$, $\mathrm{D}^+_\mathrm{c}$, $\Lambda^+_\mathrm{c}$, $\Xi^0_\mathrm{c}$ and, for the first time, $\Xi^+_\mathrm{c}$, and of the strongly-decaying $J/\psi$ mesons. The first measurements of $\Xi^+_\mathrm{c}$ and $\Sigma_\mathrm{c}^{0,+,++}$ fragmentation fractions at midrapidity are also reported. A significantly larger fraction of charm quarks hadronising to baryons is found compared to $\mathrm{e}^+\mathrm{e}^-$ and ep collisions. The $\mathrm{c}\bar{\mathrm{c}}$ production cross section at midrapidity is found to be at the upper bound of state-of-the-art perturbative QCD calculations.
DOI: 10.17182/hepdata.145759.v1/t28
title: "Figure 10 Dstar y range 1" of "Charm production and fragmentation fractions at midrapidity in pp collisions at $\sqrt{s} = 13$ TeV"

description: $\mathrm{D}^{*+}$ ratio |$y$| &lt; 0.5 / $3 &lt; y &lt; 3.5$ in pp collisions at $\sqrt{s}$ = 13 TeV
description: Measurements of the production cross sections of prompt $\mathrm{D}^0$, $\mathrm{D}^+$, $\mathrm{D}^{*+}$, $\mathrm{D}^+_\mathrm{c}$, $\Lambda^+_\mathrm{c}$, and $\Xi^+_\mathrm{c}$ charm hadrons at midrapidity in proton$-$proton collisions at $\sqrt{s}=13$ TeV with the ALICE detector are presented. The D-meson cross sections as a function of transverse momentum ($p_\mathrm{T}$) are provided with improved precision and granularity. The ratios of $p_\mathrm{T}$-differential meson production cross sections based on this publication and on measurements at different rapidity and collision energy provide a constraint on gluon parton distribution functions at low values of Bjorken-$x$ ($10^{-5}-10^{-4}$). The measurements of $\Lambda^+_\mathrm{c}$ ($\Xi^+_\mathrm{c}$) baryon production extend the measured $p_\mathrm{T}$ intervals down to $p_\mathrm{T}=0(3)$~GeV$/c$. These measurements are used to determine the charm-quark fragmentation fractions and the $\mathrm{c}\bar{\mathrm{c}}$ production cross section at midrapidity ($|y|&lt;0.5$) based on the sum of the cross sections of the weakly-decaying ground-state charm hadrons $\mathrm{D}^0$, $\mathrm{D}^+$, $\mathrm{D}^+_\mathrm{c}$, $\Lambda^+_\mathrm{c}$, $\Xi^0_\mathrm{c}$ and, for the first time, $\Xi^+_\mathrm{c}$, and of the strongly-decaying $J/\psi$ mesons. The first measurements of $\Xi^+_\mathrm{c}$ and $\Sigma_\mathrm{c}^{0,+,++}$ fragmentation fractions at midrapidity are also reported. A significantly larger fraction of charm quarks hadronising to baryons is found compared to $\mathrm{e}^+\mathrm{e}^-$ and ep collisions. The $\mathrm{c}\bar{\mathrm{c}}$ production cross section at midrapidity is found to be at the upper bound of state-of-the-art perturbative QCD calculations.
DOI: 10.17182/hepdata.145759.v1/t29
title: "Figure 10 Dstar y range 2" of "Charm production and fragmentation fractions at midrapidity in pp collisions at $\sqrt{s} = 13$ TeV"

description: $\mathrm{D}^{*+}$ ratio |$y$| &lt; 0.5 / $4 &lt; y &lt; 4.5$ in pp collisions at $\sqrt{s}$ = 13 TeV
description: Measurements of the production cross sections of prompt $\mathrm{D}^0$, $\mathrm{D}^+$, $\mathrm{D}^{*+}$, $\mathrm{D}^+_\mathrm{c}$, $\Lambda^+_\mathrm{c}$, and $\Xi^+_\mathrm{c}$ charm hadrons at midrapidity in proton$-$proton collisions at $\sqrt{s}=13$ TeV with the ALICE detector are presented. The D-meson cross sections as a function of transverse momentum ($p_\mathrm{T}$) are provided with improved precision and granularity. The ratios of $p_\mathrm{T}$-differential meson production cross sections based on this publication and on measurements at different rapidity and collision energy provide a constraint on gluon parton distribution functions at low values of Bjorken-$x$ ($10^{-5}-10^{-4}$). The measurements of $\Lambda^+_\mathrm{c}$ ($\Xi^+_\mathrm{c}$) baryon production extend the measured $p_\mathrm{T}$ intervals down to $p_\mathrm{T}=0(3)$~GeV$/c$. These measurements are used to determine the charm-quark fragmentation fractions and the $\mathrm{c}\bar{\mathrm{c}}$ production cross section at midrapidity ($|y|&lt;0.5$) based on the sum of the cross sections of the weakly-decaying ground-state charm hadrons $\mathrm{D}^0$, $\mathrm{D}^+$, $\mathrm{D}^+_\mathrm{c}$, $\Lambda^+_\mathrm{c}$, $\Xi^0_\mathrm{c}$ and, for the first time, $\Xi^+_\mathrm{c}$, and of the strongly-decaying $J/\psi$ mesons. The first measurements of $\Xi^+_\mathrm{c}$ and $\Sigma_\mathrm{c}^{0,+,++}$ fragmentation fractions at midrapidity are also reported. A significantly larger fraction of charm quarks hadronising to baryons is found compared to $\mathrm{e}^+\mathrm{e}^-$ and ep collisions. The $\mathrm{c}\bar{\mathrm{c}}$ production cross section at midrapidity is found to be at the upper bound of state-of-the-art perturbative QCD calculations.
DOI: 10.17182/hepdata.145759.v1/t30
title: "Figure 10 Ds y range 0" of "Charm production and fragmentation fractions at midrapidity in pp collisions at $\sqrt{s} = 13$ TeV"

description: $\mathrm{D}^{+}_\mathrm{s}$ ratio |$y$| &lt; 0.5 / $2 &lt; y &lt; 2.5$ in pp collisions at $\sqrt{s}$ = 13 TeV
description: Measurements of the production cross sections of prompt $\mathrm{D}^0$, $\mathrm{D}^+$, $\mathrm{D}^{*+}$, $\mathrm{D}^+_\mathrm{c}$, $\Lambda^+_\mathrm{c}$, and $\Xi^+_\mathrm{c}$ charm hadrons at midrapidity in proton$-$proton collisions at $\sqrt{s}=13$ TeV with the ALICE detector are presented. The D-meson cross sections as a function of transverse momentum ($p_\mathrm{T}$) are provided with improved precision and granularity. The ratios of $p_\mathrm{T}$-differential meson production cross sections based on this publication and on measurements at different rapidity and collision energy provide a constraint on gluon parton distribution functions at low values of Bjorken-$x$ ($10^{-5}-10^{-4}$). The measurements of $\Lambda^+_\mathrm{c}$ ($\Xi^+_\mathrm{c}$) baryon production extend the measured $p_\mathrm{T}$ intervals down to $p_\mathrm{T}=0(3)$~GeV$/c$. These measurements are used to determine the charm-quark fragmentation fractions and the $\mathrm{c}\bar{\mathrm{c}}$ production cross section at midrapidity ($|y|&lt;0.5$) based on the sum of the cross sections of the weakly-decaying ground-state charm hadrons $\mathrm{D}^0$, $\mathrm{D}^+$, $\mathrm{D}^+_\mathrm{c}$, $\Lambda^+_\mathrm{c}$, $\Xi^0_\mathrm{c}$ and, for the first time, $\Xi^+_\mathrm{c}$, and of the strongly-decaying $J/\psi$ mesons. The first measurements of $\Xi^+_\mathrm{c}$ and $\Sigma_\mathrm{c}^{0,+,++}$ fragmentation fractions at midrapidity are also reported. A significantly larger fraction of charm quarks hadronising to baryons is found compared to $\mathrm{e}^+\mathrm{e}^-$ and ep collisions. The $\mathrm{c}\bar{\mathrm{c}}$ production cross section at midrapidity is found to be at the upper bound of state-of-the-art perturbative QCD calculations.
DOI: 10.17182/hepdata.145759.v1/t31
title: "Figure 10 Ds y range 1" of "Charm production and fragmentation fractions at midrapidity in pp collisions at $\sqrt{s} = 13$ TeV"

description: $\mathrm{D}^{+}_\mathrm{s}$ ratio |$y$| &lt; 0.5 / $3 &lt; y &lt; 3.5$ in pp collisions at $\sqrt{s}$ = 13 TeV
description: Measurements of the production cross sections of prompt $\mathrm{D}^0$, $\mathrm{D}^+$, $\mathrm{D}^{*+}$, $\mathrm{D}^+_\mathrm{c}$, $\Lambda^+_\mathrm{c}$, and $\Xi^+_\mathrm{c}$ charm hadrons at midrapidity in proton$-$proton collisions at $\sqrt{s}=13$ TeV with the ALICE detector are presented. The D-meson cross sections as a function of transverse momentum ($p_\mathrm{T}$) are provided with improved precision and granularity. The ratios of $p_\mathrm{T}$-differential meson production cross sections based on this publication and on measurements at different rapidity and collision energy provide a constraint on gluon parton distribution functions at low values of Bjorken-$x$ ($10^{-5}-10^{-4}$). The measurements of $\Lambda^+_\mathrm{c}$ ($\Xi^+_\mathrm{c}$) baryon production extend the measured $p_\mathrm{T}$ intervals down to $p_\mathrm{T}=0(3)$~GeV$/c$. These measurements are used to determine the charm-quark fragmentation fractions and the $\mathrm{c}\bar{\mathrm{c}}$ production cross section at midrapidity ($|y|&lt;0.5$) based on the sum of the cross sections of the weakly-decaying ground-state charm hadrons $\mathrm{D}^0$, $\mathrm{D}^+$, $\mathrm{D}^+_\mathrm{c}$, $\Lambda^+_\mathrm{c}$, $\Xi^0_\mathrm{c}$ and, for the first time, $\Xi^+_\mathrm{c}$, and of the strongly-decaying $J/\psi$ mesons. The first measurements of $\Xi^+_\mathrm{c}$ and $\Sigma_\mathrm{c}^{0,+,++}$ fragmentation fractions at midrapidity are also reported. A significantly larger fraction of charm quarks hadronising to baryons is found compared to $\mathrm{e}^+\mathrm{e}^-$ and ep collisions. The $\mathrm{c}\bar{\mathrm{c}}$ production cross section at midrapidity is found to be at the upper bound of state-of-the-art perturbative QCD calculations.
DOI: 10.17182/hepdata.137819.v1/t1
title: "Figure 1.1" of "Two-particle transverse momentum correlations in pp and p-Pb collisions at LHC energies"

description: Two-particle transverse momentum correlation $G_{2}^{\rm CD}$ for 0$-$5% multiplicity class pp collisions at $\sqrt{s}=7\;\text{TeV}$.
description: Two-particle transverse momentum differential correlators, recently measured in Pb$-$Pb collisions at LHC energies, provide an additional tool to gain insights into particle production mechanisms and infer transport properties, such as the ratio of shear viscosity to entropy density, of the medium created in Pb$-$Pb collisions. The longitudinal long-range correlations and the large azimuthal anisotropy measured at low transverse momenta in small collision systems, namely pp and p$-$Pb, at LHC energies resemble manifestations of collective behaviour. This suggests that locally equilibrated matter may be produced in these small collision systems, similar to what is observed in Pb$-$Pb collisions. In this work, the same two-particle transverse momentum differential correlators are exploited in pp and p$-$Pb collisions at $\sqrt{s} = 7\;\text{TeV}$ and $\sqrt{s_{\rm NN}} = 5.02\;\text{TeV}$, respectively, to seek evidence for viscous effects. Specifically, the strength and shape of the correlators are studied as a function of the produced particle multiplicity to identify evidence for longitudinal broadening that might reveal the presence of viscous effects in these smaller systems. The measured correlators and their evolution from pp and p$-$Pb to Pb$-$Pb collisions are additionally compared to predictions from Monte Carlo event generators, and the potential presence of viscous effects is discussed.
DOI: 10.17182/hepdata.137819.v1/t2
title: "Figure 1.2" of "Two-particle transverse momentum correlations in pp and p-Pb collisions at LHC energies"

description: Two-particle transverse momentum correlation $G_{2}^{\rm CD}$ for 30$-$40% multiplicity class pp collisions at $\sqrt{s}=7\;\text{TeV}$.
description: Two-particle transverse momentum differential correlators, recently measured in Pb$-$Pb collisions at LHC energies, provide an additional tool to gain insights into particle production mechanisms and infer transport properties, such as the ratio of shear viscosity to entropy density, of the medium created in Pb$-$Pb collisions. The longitudinal long-range correlations and the large azimuthal anisotropy measured at low transverse momenta in small collision systems, namely pp and p$-$Pb, at LHC energies resemble manifestations of collective behaviour. This suggests that locally equilibrated matter may be produced in these small collision systems, similar to what is observed in Pb$-$Pb collisions. In this work, the same two-particle transverse momentum differential correlators are exploited in pp and p$-$Pb collisions at $\sqrt{s} = 7\;\text{TeV}$ and $\sqrt{s_{\rm NN}} = 5.02\;\text{TeV}$, respectively, to seek evidence for viscous effects. Specifically, the strength and shape of the correlators are studied as a function of the produced particle multiplicity to identify evidence for longitudinal broadening that might reveal the presence of viscous effects in these smaller systems. The measured correlators and their evolution from pp and p$-$Pb to Pb$-$Pb collisions are additionally compared to predictions from Monte Carlo event generators, and the potential presence of viscous effects is discussed.
DOI: 10.17182/hepdata.145759.v1/t32
title: "Figure 10 Ds y range 2" of "Charm production and fragmentation fractions at midrapidity in pp collisions at $\sqrt{s} = 13$ TeV"

description: $\mathrm{D}^{+}_\mathrm{s}$ ratio |$y$| &lt; 0.5 / $4 &lt; y &lt; 4.5$ in pp collisions at $\sqrt{s}$ = 13 TeV
description: Measurements of the production cross sections of prompt $\mathrm{D}^0$, $\mathrm{D}^+$, $\mathrm{D}^{*+}$, $\mathrm{D}^+_\mathrm{c}$, $\Lambda^+_\mathrm{c}$, and $\Xi^+_\mathrm{c}$ charm hadrons at midrapidity in proton$-$proton collisions at $\sqrt{s}=13$ TeV with the ALICE detector are presented. The D-meson cross sections as a function of transverse momentum ($p_\mathrm{T}$) are provided with improved precision and granularity. The ratios of $p_\mathrm{T}$-differential meson production cross sections based on this publication and on measurements at different rapidity and collision energy provide a constraint on gluon parton distribution functions at low values of Bjorken-$x$ ($10^{-5}-10^{-4}$). The measurements of $\Lambda^+_\mathrm{c}$ ($\Xi^+_\mathrm{c}$) baryon production extend the measured $p_\mathrm{T}$ intervals down to $p_\mathrm{T}=0(3)$~GeV$/c$. These measurements are used to determine the charm-quark fragmentation fractions and the $\mathrm{c}\bar{\mathrm{c}}$ production cross section at midrapidity ($|y|&lt;0.5$) based on the sum of the cross sections of the weakly-decaying ground-state charm hadrons $\mathrm{D}^0$, $\mathrm{D}^+$, $\mathrm{D}^+_\mathrm{c}$, $\Lambda^+_\mathrm{c}$, $\Xi^0_\mathrm{c}$ and, for the first time, $\Xi^+_\mathrm{c}$, and of the strongly-decaying $J/\psi$ mesons. The first measurements of $\Xi^+_\mathrm{c}$ and $\Sigma_\mathrm{c}^{0,+,++}$ fragmentation fractions at midrapidity are also reported. A significantly larger fraction of charm quarks hadronising to baryons is found compared to $\mathrm{e}^+\mathrm{e}^-$ and ep collisions. The $\mathrm{c}\bar{\mathrm{c}}$ production cross section at midrapidity is found to be at the upper bound of state-of-the-art perturbative QCD calculations.
DOI: 10.17182/hepdata.145759.v1/t33
title: "Figure 11 y range 0" of "Charm production and fragmentation fractions at midrapidity in pp collisions at $\sqrt{s} = 13$ TeV"

description: Double ratio $\mathrm{D}^{0}$ 13 TeV / 5.02 TeV |$y$| &lt; 0.5 / $2 &lt; y &lt; 2.5$ in pp collisions at $\sqrt{s}$ = 13 TeV
description: Measurements of the production cross sections of prompt $\mathrm{D}^0$, $\mathrm{D}^+$, $\mathrm{D}^{*+}$, $\mathrm{D}^+_\mathrm{c}$, $\Lambda^+_\mathrm{c}$, and $\Xi^+_\mathrm{c}$ charm hadrons at midrapidity in proton$-$proton collisions at $\sqrt{s}=13$ TeV with the ALICE detector are presented. The D-meson cross sections as a function of transverse momentum ($p_\mathrm{T}$) are provided with improved precision and granularity. The ratios of $p_\mathrm{T}$-differential meson production cross sections based on this publication and on measurements at different rapidity and collision energy provide a constraint on gluon parton distribution functions at low values of Bjorken-$x$ ($10^{-5}-10^{-4}$). The measurements of $\Lambda^+_\mathrm{c}$ ($\Xi^+_\mathrm{c}$) baryon production extend the measured $p_\mathrm{T}$ intervals down to $p_\mathrm{T}=0(3)$~GeV$/c$. These measurements are used to determine the charm-quark fragmentation fractions and the $\mathrm{c}\bar{\mathrm{c}}$ production cross section at midrapidity ($|y|&lt;0.5$) based on the sum of the cross sections of the weakly-decaying ground-state charm hadrons $\mathrm{D}^0$, $\mathrm{D}^+$, $\mathrm{D}^+_\mathrm{c}$, $\Lambda^+_\mathrm{c}$, $\Xi^0_\mathrm{c}$ and, for the first time, $\Xi^+_\mathrm{c}$, and of the strongly-decaying $J/\psi$ mesons. The first measurements of $\Xi^+_\mathrm{c}$ and $\Sigma_\mathrm{c}^{0,+,++}$ fragmentation fractions at midrapidity are also reported. A significantly larger fraction of charm quarks hadronising to baryons is found compared to $\mathrm{e}^+\mathrm{e}^-$ and ep collisions. The $\mathrm{c}\bar{\mathrm{c}}$ production cross section at midrapidity is found to be at the upper bound of state-of-the-art perturbative QCD calculations.
DOI: 10.17182/hepdata.145759.v1/t34
title: "Figure 11 y range 1" of "Charm production and fragmentation fractions at midrapidity in pp collisions at $\sqrt{s} = 13$ TeV"

description: Double ratio $\mathrm{D}^{0}$ 13 TeV / 5.02 TeV |$y$| &lt; 0.5 / $3 &lt; y &lt; 3.5$ in pp collisions at $\sqrt{s}$ = 13 TeV
description: Measurements of the production cross sections of prompt $\mathrm{D}^0$, $\mathrm{D}^+$, $\mathrm{D}^{*+}$, $\mathrm{D}^+_\mathrm{c}$, $\Lambda^+_\mathrm{c}$, and $\Xi^+_\mathrm{c}$ charm hadrons at midrapidity in proton$-$proton collisions at $\sqrt{s}=13$ TeV with the ALICE detector are presented. The D-meson cross sections as a function of transverse momentum ($p_\mathrm{T}$) are provided with improved precision and granularity. The ratios of $p_\mathrm{T}$-differential meson production cross sections based on this publication and on measurements at different rapidity and collision energy provide a constraint on gluon parton distribution functions at low values of Bjorken-$x$ ($10^{-5}-10^{-4}$). The measurements of $\Lambda^+_\mathrm{c}$ ($\Xi^+_\mathrm{c}$) baryon production extend the measured $p_\mathrm{T}$ intervals down to $p_\mathrm{T}=0(3)$~GeV$/c$. These measurements are used to determine the charm-quark fragmentation fractions and the $\mathrm{c}\bar{\mathrm{c}}$ production cross section at midrapidity ($|y|&lt;0.5$) based on the sum of the cross sections of the weakly-decaying ground-state charm hadrons $\mathrm{D}^0$, $\mathrm{D}^+$, $\mathrm{D}^+_\mathrm{c}$, $\Lambda^+_\mathrm{c}$, $\Xi^0_\mathrm{c}$ and, for the first time, $\Xi^+_\mathrm{c}$, and of the strongly-decaying $J/\psi$ mesons. The first measurements of $\Xi^+_\mathrm{c}$ and $\Sigma_\mathrm{c}^{0,+,++}$ fragmentation fractions at midrapidity are also reported. A significantly larger fraction of charm quarks hadronising to baryons is found compared to $\mathrm{e}^+\mathrm{e}^-$ and ep collisions. The $\mathrm{c}\bar{\mathrm{c}}$ production cross section at midrapidity is found to be at the upper bound of state-of-the-art perturbative QCD calculations.