cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.134258.v1/t12
title: "Figure 4.4" of "Elliptic flow of charged particles at midrapidity relative to the spectator plane in Pb-Pb and Xe-Xe collisions"

description: Ratios of $v_2/\varepsilon_2$ as a function of $1/S\ \mathrm{d}N_{\mathrm{ch}}/\mathrm{d}\eta$ for Pb--Pb collisions at $\sqrt{s_{\mathrm{NN}}}=2.76~\mathrm{TeV}$ divided by the linear Pb--Pb fits.
description: Measurements of the elliptic flow coefficient relative to the collision plane defined by the spectator neutrons $v_2\{\Psi_\mathrm{SP}\}$ in collisions of Pb ions at center-of-mass energy per nucleon-nucleon pair $\sqrt{s_\mathrm{NN}}=2.76$ TeV and Xe ions at $\sqrt{s_\mathrm{NN}}=5.44$ TeV are reported. The results are presented for charged particles produced at midrapidity as a function of centrality and transverse momentum for the $5-70\%$ and $0.2-6\ \mathrm{GeV}/c$ ranges, respectively. The ratio between $v_2\{\Psi_\mathrm{SP}\}$ and the elliptic flow coefficient relative to the participant plane $v_2\{4\}$, estimated using four-particle correlations, deviates by up to $20\%$ from unity depending on centrality. This observation differs strongly from the magnitude of the corresponding eccentricity ratios predicted by the TRENTo and the elliptic power models of initial state fluctuations that are tuned to describe the participant plane anisotropies. The differences can be interpreted as a decorrelation of the neutron spectator plane and the reaction plane because of fragmentation of the remnants from the colliding nuclei, which points to an incompleteness of current models describing the initial state fluctuations. A significant transverse momentum dependence of the ratio $v_2\{\Psi_\mathrm{SP}\}/v_2\{4\}$ is observed in all but the most central collisions, which may help to understand whether momentum anisotropies at low and intermediate transverse momentum have a common origin in initial state fluctuations. The ratios of $v_2\{\Psi_\mathrm{SP}\}$ and $v_2\{4\}$ to the corresponding initial state eccentricities for Xe--Xe and Pb--Pb collisions at similar initial entropy density show a difference of $(7.0\pm0.9)\%$ with an additional variation of $+1.8\%$ when including RHIC data in the TRENTo parameter extraction. These observations provide new experimental constraints for viscous effects in the hydrodynamic modeling of the expanding quark--gluon plasma produced in heavy-ion collisions at the LHC.
DOI: 10.17182/hepdata.134258.v1/t13
title: "Figure 4.5" of "Elliptic flow of charged particles at midrapidity relative to the spectator plane in Pb-Pb and Xe-Xe collisions"

description: Relative deviation of $v_2/\varepsilon_2$ as a function of $1/S\ \mathrm{d}N_{\mathrm{ch}}/\mathrm{d}\eta$ in Pb--Pb and Xe--Xe collisions.
description: Measurements of the elliptic flow coefficient relative to the collision plane defined by the spectator neutrons $v_2\{\Psi_\mathrm{SP}\}$ in collisions of Pb ions at center-of-mass energy per nucleon-nucleon pair $\sqrt{s_\mathrm{NN}}=2.76$ TeV and Xe ions at $\sqrt{s_\mathrm{NN}}=5.44$ TeV are reported. The results are presented for charged particles produced at midrapidity as a function of centrality and transverse momentum for the $5-70\%$ and $0.2-6\ \mathrm{GeV}/c$ ranges, respectively. The ratio between $v_2\{\Psi_\mathrm{SP}\}$ and the elliptic flow coefficient relative to the participant plane $v_2\{4\}$, estimated using four-particle correlations, deviates by up to $20\%$ from unity depending on centrality. This observation differs strongly from the magnitude of the corresponding eccentricity ratios predicted by the TRENTo and the elliptic power models of initial state fluctuations that are tuned to describe the participant plane anisotropies. The differences can be interpreted as a decorrelation of the neutron spectator plane and the reaction plane because of fragmentation of the remnants from the colliding nuclei, which points to an incompleteness of current models describing the initial state fluctuations. A significant transverse momentum dependence of the ratio $v_2\{\Psi_\mathrm{SP}\}/v_2\{4\}$ is observed in all but the most central collisions, which may help to understand whether momentum anisotropies at low and intermediate transverse momentum have a common origin in initial state fluctuations. The ratios of $v_2\{\Psi_\mathrm{SP}\}$ and $v_2\{4\}$ to the corresponding initial state eccentricities for Xe--Xe and Pb--Pb collisions at similar initial entropy density show a difference of $(7.0\pm0.9)\%$ with an additional variation of $+1.8\%$ when including RHIC data in the TRENTo parameter extraction. These observations provide new experimental constraints for viscous effects in the hydrodynamic modeling of the expanding quark--gluon plasma produced in heavy-ion collisions at the LHC.
DOI: 10.17182/hepdata.136308.v1/t6
title: "Table 6" of "Study of charged particle production at high $p_{\rm T}$ using event topology in pp, p$-$Pb and Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV"

description: $p_{\rm T}$-spectra of charged particles in (toward-transverse) region for different multiplicity classes in Pb-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV.
description: No data abstract available.
DOI: 10.17182/hepdata.136308.v1/t7
title: "Table 7" of "Study of charged particle production at high $p_{\rm T}$ using event topology in pp, p$-$Pb and Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV"

description: $p_{\rm T}$-spectra of charged particles in (away-transverse) region for different multiplicity classes in pp collisions at $\sqrt{s}$ = 5.02 TeV.
description: No data abstract available.
DOI: 10.17182/hepdata.134031.v1/t2
title: "$\mathrm{D^{0}}$ jets in pp 5.02 TeV" of "Measurement of the production of charm jets tagged with ${\rm D^0}$ mesons in pp collisions at $\sqrt{s}$ = 5.02 and 13 TeV"

description: $p_{\mathrm{T,ch\ jet}}$-differential cross section of charm jets tagged with $\mathrm{D^{0}}$ mesons for $R=0.2$, $0.4$, and $0.6$ in pp collisions at $\sqrt{s}=5.02$ TeV.
description: The measurement of the production of charm jets, identified by the presence of a $\mathrm{D^0}$ meson in the jet constituents, is presented in proton--proton collisions at centre-of-mass energies of $\sqrt{s}=5.02$ and $13$ TeV with the ALICE detector at the CERN LHC.The $\mathrm{D^0}$ mesons were reconstructed from their hadronic decay $\mathrm{D^0}\rightarrow\mathrm{K}^{-}\mathrm{\pi}^{0}$ and the respective charge conjugate. Jets were reconstructed from $\mathrm{D^0}$-meson candidates and charged particles using the anti-$k_\text{T}$ algorithm, in the jet transverse momentum range $5 &lt; p_{\mathrm{T,ch\ jet}}&lt; 50$ GeV/$c$, pseudorapidity $|\eta_{\mathrm{ch\ jet}}| &lt; 0.9-R$, and with the jet resolution parameters $R = 0.2$, $0.4$, $0.6$. The distribution of the jet momentum fraction carried by a $\mathrm{D^0}$ meson along the jet axis ($z^{\mathrm{ch}}_{||}$) was measured in the range $0.4&lt; z^{\mathrm{ch}}_{||} &lt;1.0$ in four ranges of the jet transverse momentum.Comparisons of results for different collision energies and jet resolution parameters are also presented. The measurements are compared to predictions from Monte Carlo event generators based on leading-order and next-to-leading-order perturbative quantum chromodynamics calculations. A generally good description of the main features of the data is obtained in spite of a few discrepancies at low $p_{\mathrm{T,ch\ jet}}$. Measurements were also done for $R=0.3$ at $\sqrt{s}=5.02$ TeV and are shown along with their comparisons to theoretical predictions in an appendix to this paper.
DOI: 10.17182/hepdata.134031.v1/t3
title: "Cross-section ratios $\sigma(13$ TeV$)/\sigma(5.02$ TeV$)$" of "Measurement of the production of charm jets tagged with ${\rm D^0}$ mesons in pp collisions at $\sqrt{s}$ = 5.02 and 13 TeV"

description: Ratio of $p_{\mathrm{T,ch\ jet}}$-differential cross section of charm jets tagged with $\mathrm{D^{0}}$ mesons in pp collisions at $\sqrt{s}=13$ TeV to $\sqrt{s}=5.02$ TeV for $R=0.2$, $0.4$, and $0.6$.
description: The measurement of the production of charm jets, identified by the presence of a $\mathrm{D^0}$ meson in the jet constituents, is presented in proton--proton collisions at centre-of-mass energies of $\sqrt{s}=5.02$ and $13$ TeV with the ALICE detector at the CERN LHC.The $\mathrm{D^0}$ mesons were reconstructed from their hadronic decay $\mathrm{D^0}\rightarrow\mathrm{K}^{-}\mathrm{\pi}^{0}$ and the respective charge conjugate. Jets were reconstructed from $\mathrm{D^0}$-meson candidates and charged particles using the anti-$k_\text{T}$ algorithm, in the jet transverse momentum range $5 &lt; p_{\mathrm{T,ch\ jet}}&lt; 50$ GeV/$c$, pseudorapidity $|\eta_{\mathrm{ch\ jet}}| &lt; 0.9-R$, and with the jet resolution parameters $R = 0.2$, $0.4$, $0.6$. The distribution of the jet momentum fraction carried by a $\mathrm{D^0}$ meson along the jet axis ($z^{\mathrm{ch}}_{||}$) was measured in the range $0.4&lt; z^{\mathrm{ch}}_{||} &lt;1.0$ in four ranges of the jet transverse momentum.Comparisons of results for different collision energies and jet resolution parameters are also presented. The measurements are compared to predictions from Monte Carlo event generators based on leading-order and next-to-leading-order perturbative quantum chromodynamics calculations. A generally good description of the main features of the data is obtained in spite of a few discrepancies at low $p_{\mathrm{T,ch\ jet}}$. Measurements were also done for $R=0.3$ at $\sqrt{s}=5.02$ TeV and are shown along with their comparisons to theoretical predictions in an appendix to this paper.
DOI: 10.17182/hepdata.134031.v1/t4
title: "Cross-section ratios 13 TeV, $\sigma(R=0.2)/\sigma(R=0.4,0.6)$" of "Measurement of the production of charm jets tagged with ${\rm D^0}$ mesons in pp collisions at $\sqrt{s}$ = 5.02 and 13 TeV"

description: Ratio of $p_{\mathrm{T,ch\ jet}}$-differential cross section of charm jets tagged with $\mathrm{D^{0}}$ mesons for different $R$: $\sigma(R=0.2)/\sigma(R=0.4)$ and $\sigma(R=0.2)/\sigma(R=0.6)$ in pp collisions at $\sqrt{s}=13$ TeV.
description: The measurement of the production of charm jets, identified by the presence of a $\mathrm{D^0}$ meson in the jet constituents, is presented in proton--proton collisions at centre-of-mass energies of $\sqrt{s}=5.02$ and $13$ TeV with the ALICE detector at the CERN LHC.The $\mathrm{D^0}$ mesons were reconstructed from their hadronic decay $\mathrm{D^0}\rightarrow\mathrm{K}^{-}\mathrm{\pi}^{0}$ and the respective charge conjugate. Jets were reconstructed from $\mathrm{D^0}$-meson candidates and charged particles using the anti-$k_\text{T}$ algorithm, in the jet transverse momentum range $5 &lt; p_{\mathrm{T,ch\ jet}}&lt; 50$ GeV/$c$, pseudorapidity $|\eta_{\mathrm{ch\ jet}}| &lt; 0.9-R$, and with the jet resolution parameters $R = 0.2$, $0.4$, $0.6$. The distribution of the jet momentum fraction carried by a $\mathrm{D^0}$ meson along the jet axis ($z^{\mathrm{ch}}_{||}$) was measured in the range $0.4&lt; z^{\mathrm{ch}}_{||} &lt;1.0$ in four ranges of the jet transverse momentum.Comparisons of results for different collision energies and jet resolution parameters are also presented. The measurements are compared to predictions from Monte Carlo event generators based on leading-order and next-to-leading-order perturbative quantum chromodynamics calculations. A generally good description of the main features of the data is obtained in spite of a few discrepancies at low $p_{\mathrm{T,ch\ jet}}$. Measurements were also done for $R=0.3$ at $\sqrt{s}=5.02$ TeV and are shown along with their comparisons to theoretical predictions in an appendix to this paper.
DOI: 10.17182/hepdata.136308.v1/t10
title: "Table 10" of "Study of charged particle production at high $p_{\rm T}$ using event topology in pp, p$-$Pb and Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV"

description: $I_{\rm{X}}^{t}$ as a function of $$ for 4$
description: No data abstract available.
DOI: 10.17182/hepdata.136308.v1/t11
title: "Table 11" of "Study of charged particle production at high $p_{\rm T}$ using event topology in pp, p$-$Pb and Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV"

description: $I_{\rm{X}}^{t}$ as a function of $$ for 4$
description: No data abstract available.
DOI: 10.17182/hepdata.136308.v1/t8
title: "Table 8" of "Study of charged particle production at high $p_{\rm T}$ using event topology in pp, p$-$Pb and Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV"

description: $p_{\rm T}$-spectra of charged particles in (away-transverse) region for different multiplicity classes in p-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV.
description: No data abstract available.
DOI: 10.17182/hepdata.136308.v1/t9
title: "Table 9" of "Study of charged particle production at high $p_{\rm T}$ using event topology in pp, p$-$Pb and Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV"

description: $p_{\rm T}$-spectra of charged particles in (away-transverse) region for different multiplicity classes in Pb-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV.
description: No data abstract available.
DOI: 10.17182/hepdata.134031.v1/t5
title: "Cross-section ratios 5.02 TeV, $\sigma(R=0.2)/\sigma(R=0.4,0.6)$" of "Measurement of the production of charm jets tagged with ${\rm D^0}$ mesons in pp collisions at $\sqrt{s}$ = 5.02 and 13 TeV"

description: Ratio of $p_{\mathrm{T,ch\ jet}}$-differential cross section of charm jets tagged with $\mathrm{D^{0}}$ mesons for different $R$: $\sigma(R=0.2)/\sigma(R=0.4)$ and $\sigma(R=0.2)/\sigma(R=0.6)$ in pp collisions at $\sqrt{s}=5.02$ TeV.
description: The measurement of the production of charm jets, identified by the presence of a $\mathrm{D^0}$ meson in the jet constituents, is presented in proton--proton collisions at centre-of-mass energies of $\sqrt{s}=5.02$ and $13$ TeV with the ALICE detector at the CERN LHC.The $\mathrm{D^0}$ mesons were reconstructed from their hadronic decay $\mathrm{D^0}\rightarrow\mathrm{K}^{-}\mathrm{\pi}^{0}$ and the respective charge conjugate. Jets were reconstructed from $\mathrm{D^0}$-meson candidates and charged particles using the anti-$k_\text{T}$ algorithm, in the jet transverse momentum range $5 &lt; p_{\mathrm{T,ch\ jet}}&lt; 50$ GeV/$c$, pseudorapidity $|\eta_{\mathrm{ch\ jet}}| &lt; 0.9-R$, and with the jet resolution parameters $R = 0.2$, $0.4$, $0.6$. The distribution of the jet momentum fraction carried by a $\mathrm{D^0}$ meson along the jet axis ($z^{\mathrm{ch}}_{||}$) was measured in the range $0.4&lt; z^{\mathrm{ch}}_{||} &lt;1.0$ in four ranges of the jet transverse momentum.Comparisons of results for different collision energies and jet resolution parameters are also presented. The measurements are compared to predictions from Monte Carlo event generators based on leading-order and next-to-leading-order perturbative quantum chromodynamics calculations. A generally good description of the main features of the data is obtained in spite of a few discrepancies at low $p_{\mathrm{T,ch\ jet}}$. Measurements were also done for $R=0.3$ at $\sqrt{s}=5.02$ TeV and are shown along with their comparisons to theoretical predictions in an appendix to this paper.
DOI: 10.17182/hepdata.134031.v1/t6
title: "$\mathrm{D^{0}}$ jets / Inclusive jets 5.02 TeV, R=0.2,0.4,0.6" of "Measurement of the production of charm jets tagged with ${\rm D^0}$ mesons in pp collisions at $\sqrt{s}$ = 5.02 and 13 TeV"

description: The fraction of $\mathrm{D^{0}}$ jets over inclusive charged-particle jets in pp collisions at $\sqrt{s}=5.02$ TeV for $R=0.2$, $0.4$, and $0.6$.
description: The measurement of the production of charm jets, identified by the presence of a $\mathrm{D^0}$ meson in the jet constituents, is presented in proton--proton collisions at centre-of-mass energies of $\sqrt{s}=5.02$ and $13$ TeV with the ALICE detector at the CERN LHC.The $\mathrm{D^0}$ mesons were reconstructed from their hadronic decay $\mathrm{D^0}\rightarrow\mathrm{K}^{-}\mathrm{\pi}^{0}$ and the respective charge conjugate. Jets were reconstructed from $\mathrm{D^0}$-meson candidates and charged particles using the anti-$k_\text{T}$ algorithm, in the jet transverse momentum range $5 &lt; p_{\mathrm{T,ch\ jet}}&lt; 50$ GeV/$c$, pseudorapidity $|\eta_{\mathrm{ch\ jet}}| &lt; 0.9-R$, and with the jet resolution parameters $R = 0.2$, $0.4$, $0.6$. The distribution of the jet momentum fraction carried by a $\mathrm{D^0}$ meson along the jet axis ($z^{\mathrm{ch}}_{||}$) was measured in the range $0.4&lt; z^{\mathrm{ch}}_{||} &lt;1.0$ in four ranges of the jet transverse momentum.Comparisons of results for different collision energies and jet resolution parameters are also presented. The measurements are compared to predictions from Monte Carlo event generators based on leading-order and next-to-leading-order perturbative quantum chromodynamics calculations. A generally good description of the main features of the data is obtained in spite of a few discrepancies at low $p_{\mathrm{T,ch\ jet}}$. Measurements were also done for $R=0.3$ at $\sqrt{s}=5.02$ TeV and are shown along with their comparisons to theoretical predictions in an appendix to this paper.
DOI: 10.17182/hepdata.134031.v1/t7
title: "Jet momentum fraction ($z^{\mathrm{ch}}_{||}$) 13 TeV" of "Measurement of the production of charm jets tagged with ${\rm D^0}$ mesons in pp collisions at $\sqrt{s}$ = 5.02 and 13 TeV"

description: Distributions of $z^{\mathrm{ch}}_{||}$-differential yield of charm jets tagged with $\mathrm{D^{0}}$ mesons normalised by the number of $\mathrm{D^{0}}$ jets within each distribution in pp collisions at $\sqrt{s}=13$ TeV in four jet-$p_{\mathrm{T}}$ intervals $5
description: The measurement of the production of charm jets, identified by the presence of a $\mathrm{D^0}$ meson in the jet constituents, is presented in proton--proton collisions at centre-of-mass energies of $\sqrt{s}=5.02$ and $13$ TeV with the ALICE detector at the CERN LHC.The $\mathrm{D^0}$ mesons were reconstructed from their hadronic decay $\mathrm{D^0}\rightarrow\mathrm{K}^{-}\mathrm{\pi}^{0}$ and the respective charge conjugate. Jets were reconstructed from $\mathrm{D^0}$-meson candidates and charged particles using the anti-$k_\text{T}$ algorithm, in the jet transverse momentum range $5 &lt; p_{\mathrm{T,ch\ jet}}&lt; 50$ GeV/$c$, pseudorapidity $|\eta_{\mathrm{ch\ jet}}| &lt; 0.9-R$, and with the jet resolution parameters $R = 0.2$, $0.4$, $0.6$. The distribution of the jet momentum fraction carried by a $\mathrm{D^0}$ meson along the jet axis ($z^{\mathrm{ch}}_{||}$) was measured in the range $0.4&lt; z^{\mathrm{ch}}_{||} &lt;1.0$ in four ranges of the jet transverse momentum.Comparisons of results for different collision energies and jet resolution parameters are also presented. The measurements are compared to predictions from Monte Carlo event generators based on leading-order and next-to-leading-order perturbative quantum chromodynamics calculations. A generally good description of the main features of the data is obtained in spite of a few discrepancies at low $p_{\mathrm{T,ch\ jet}}$. Measurements were also done for $R=0.3$ at $\sqrt{s}=5.02$ TeV and are shown along with their comparisons to theoretical predictions in an appendix to this paper.
DOI: 10.17182/hepdata.134031.v1/t8
title: "Jet momentum fraction ($z^{\mathrm{ch}}_{||}$) 5.02 TeV" of "Measurement of the production of charm jets tagged with ${\rm D^0}$ mesons in pp collisions at $\sqrt{s}$ = 5.02 and 13 TeV"

description: Distributions of $z^{\mathrm{ch}}_{||}$-differential yield of charm jets tagged with $\mathrm{D^{0}}$ mesons normalised by the number of $\mathrm{D^{0}}$ jets within each distribution in pp collisions at $\sqrt{s}=5.02$ TeV in four jet-$p_{\mathrm{T}}$ intervals $5
description: The measurement of the production of charm jets, identified by the presence of a $\mathrm{D^0}$ meson in the jet constituents, is presented in proton--proton collisions at centre-of-mass energies of $\sqrt{s}=5.02$ and $13$ TeV with the ALICE detector at the CERN LHC.The $\mathrm{D^0}$ mesons were reconstructed from their hadronic decay $\mathrm{D^0}\rightarrow\mathrm{K}^{-}\mathrm{\pi}^{0}$ and the respective charge conjugate. Jets were reconstructed from $\mathrm{D^0}$-meson candidates and charged particles using the anti-$k_\text{T}$ algorithm, in the jet transverse momentum range $5 &lt; p_{\mathrm{T,ch\ jet}}&lt; 50$ GeV/$c$, pseudorapidity $|\eta_{\mathrm{ch\ jet}}| &lt; 0.9-R$, and with the jet resolution parameters $R = 0.2$, $0.4$, $0.6$. The distribution of the jet momentum fraction carried by a $\mathrm{D^0}$ meson along the jet axis ($z^{\mathrm{ch}}_{||}$) was measured in the range $0.4&lt; z^{\mathrm{ch}}_{||} &lt;1.0$ in four ranges of the jet transverse momentum.Comparisons of results for different collision energies and jet resolution parameters are also presented. The measurements are compared to predictions from Monte Carlo event generators based on leading-order and next-to-leading-order perturbative quantum chromodynamics calculations. A generally good description of the main features of the data is obtained in spite of a few discrepancies at low $p_{\mathrm{T,ch\ jet}}$. Measurements were also done for $R=0.3$ at $\sqrt{s}=5.02$ TeV and are shown along with their comparisons to theoretical predictions in an appendix to this paper.
DOI: 10.17182/hepdata.136308.v1/t12
title: "Table 12" of "Study of charged particle production at high $p_{\rm T}$ using event topology in pp, p$-$Pb and Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV"

description: $I_{\rm{X}}^{t}$ as a function of $$ for 4$
description: No data abstract available.
DOI: 10.17182/hepdata.136308.v1/t13
title: "Table 13" of "Study of charged particle production at high $p_{\rm T}$ using event topology in pp, p$-$Pb and Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV"

description: $I_{\rm{X}}^{a}$ as a function of $$ for 4$
description: No data abstract available.
DOI: 10.17182/hepdata.136308.v1/t14
title: "Table 14" of "Study of charged particle production at high $p_{\rm T}$ using event topology in pp, p$-$Pb and Pb$-$Pb collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV"

description: $I_{\rm{X}}^{a}$ as a function of $$ for 4$
description: No data abstract available.
DOI: 10.17182/hepdata.133026.v1/t1
title: "Table 1" of "Characterizing the initial conditions of heavy-ion collisions at the LHC with mean transverse momentum and anisotropic flow correlations"

description: Centrality dependence of $\rho\left(v_{2}^{2}, [p_{\rm T}] \right)$ and $\rho\left(v_{3}^{2}, [p_{\rm T}] \right)$ in Pb--Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV
description: Correlations between mean transverse momentum $[p_{\rm T}]$ and anisotropic flow coefficients $v_{\rm 2}$ or $v_{\rm 3}$ are measured as a function of centrality in Pb--Pb and Xe--Xe collisions at $\sqrt{s_{\rm NN}} = 5.02$ TeV and 5.44 TeV, respectively, with ALICE. In addition, the recently proposed higher-order correlation between $[p_{\rm T}]$, $v_{\rm 2}$, and $v_{\rm 3}$ is measured for the first time, which shows an anticorrelation for the presented centrality ranges. These measurements are compared with hydrodynamic calculations using IP-Glasma and $\rm T_{R}ENTo$ initial-state shapes, the former based on the Color Glass Condensate effective theory with gluon saturation, and the latter a parameterized model with nucleons as the relevant degrees of freedom. The data are better described by the IP-Glasma rather than the $\rm T_{R}ENTo$ based calculations. In particular, Trajectum and JETSCAPE predictions, both based on the $\rm T_{R}ENTo$ initial state model but with different parameter settings, fail to describe the measurements. As the correlations between $[p_{\rm T}]$ and $v_{\rm n}$ are mainly driven by the correlations of the size and the shape of the system in the initial state, these new studies pave a novel way to characterize the initial state in relativistic heavy-ion collisions.