cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.165812.v1/t18
title: "Figure 2, right, protons mT bin 5" of "Femtoscopic study of the proton-proton and proton-deuteron systems in heavy-ion collisions at the LHC"

description: $R_{\rm p}$ vs. '^{1/3}' for mT bin 5 for Pb-Pb collisions at 5020 GeV.
description: This work reports femtoscopy correlations of $p-p (\overline{p}-\overline{p})$ and $p-d (\overline{p}-\overline{d})$ pairs measured in Pb--Pb collisions at center-of-mass energy $\sqrt{s_{\rm NN}}$ = 5.02~TeV by the ALICE Collaboration. A fit to the measured proton-proton correlation functions allows one to extract the dependence of the nucleon femtoscopic radius of the particle-emitting source as a function of the pair transverse mass ($m_\text{T}$) and of the average charge particle multiplicity $\langle\text{dN}_\text{ch}/\text{d}\eta\rangle^{1/3}$ for three centrality intervals (0--10$\%$, 10--30$\%$, 30--50$\%$). In both cases, the expected power-law and liner scalings are observed, respectively. The measured \pd correlations can be described by both two- and three-body calculations, indicating that the femtoscopy observable is not sensitive to the short-distance features of the dynamics of the p-(p-n) system, due to the large inter-particle distances in \mbox{Pb--Pb} collisions at the LHC. Indeed, in this study, the minimum measured femtoscopic source sizes for protons and deuterons start at $2.73^{+0.05}_{-0.05}$ and $3.10^{+1.04}_{-0.86}$~fm, respectively, for the 30–50$\%$ centrality of the collisions. Moreover, the $m_{\rm{T}}$-scaling obtained for the \pP and \pd systems is compatible within 1$\sigma$ of the uncertainties. These findings provide new input for fundamental studies on the production of light (anti)nuclei under extreme conditions.
DOI: 10.17182/hepdata.165812.v1/t19
title: "Figure 2, right, protons mT bin 6" of "Femtoscopic study of the proton-proton and proton-deuteron systems in heavy-ion collisions at the LHC"

description: $R_{\rm p}$ vs. '^{1/3}' for mT bin 6 for Pb-Pb collisions at 5020 GeV.
description: This work reports femtoscopy correlations of $p-p (\overline{p}-\overline{p})$ and $p-d (\overline{p}-\overline{d})$ pairs measured in Pb--Pb collisions at center-of-mass energy $\sqrt{s_{\rm NN}}$ = 5.02~TeV by the ALICE Collaboration. A fit to the measured proton-proton correlation functions allows one to extract the dependence of the nucleon femtoscopic radius of the particle-emitting source as a function of the pair transverse mass ($m_\text{T}$) and of the average charge particle multiplicity $\langle\text{dN}_\text{ch}/\text{d}\eta\rangle^{1/3}$ for three centrality intervals (0--10$\%$, 10--30$\%$, 30--50$\%$). In both cases, the expected power-law and liner scalings are observed, respectively. The measured \pd correlations can be described by both two- and three-body calculations, indicating that the femtoscopy observable is not sensitive to the short-distance features of the dynamics of the p-(p-n) system, due to the large inter-particle distances in \mbox{Pb--Pb} collisions at the LHC. Indeed, in this study, the minimum measured femtoscopic source sizes for protons and deuterons start at $2.73^{+0.05}_{-0.05}$ and $3.10^{+1.04}_{-0.86}$~fm, respectively, for the 30–50$\%$ centrality of the collisions. Moreover, the $m_{\rm{T}}$-scaling obtained for the \pP and \pd systems is compatible within 1$\sigma$ of the uncertainties. These findings provide new input for fundamental studies on the production of light (anti)nuclei under extreme conditions.
DOI: 10.17182/hepdata.165812.v1/t20
title: "Figure 2, right, protons mT bin 7" of "Femtoscopic study of the proton-proton and proton-deuteron systems in heavy-ion collisions at the LHC"

description: $R_{\rm p}$ vs.'^{1/3}' for mT bin 7 for Pb-Pb collisions at 5020 GeV.
description: This work reports femtoscopy correlations of $p-p (\overline{p}-\overline{p})$ and $p-d (\overline{p}-\overline{d})$ pairs measured in Pb--Pb collisions at center-of-mass energy $\sqrt{s_{\rm NN}}$ = 5.02~TeV by the ALICE Collaboration. A fit to the measured proton-proton correlation functions allows one to extract the dependence of the nucleon femtoscopic radius of the particle-emitting source as a function of the pair transverse mass ($m_\text{T}$) and of the average charge particle multiplicity $\langle\text{dN}_\text{ch}/\text{d}\eta\rangle^{1/3}$ for three centrality intervals (0--10$\%$, 10--30$\%$, 30--50$\%$). In both cases, the expected power-law and liner scalings are observed, respectively. The measured \pd correlations can be described by both two- and three-body calculations, indicating that the femtoscopy observable is not sensitive to the short-distance features of the dynamics of the p-(p-n) system, due to the large inter-particle distances in \mbox{Pb--Pb} collisions at the LHC. Indeed, in this study, the minimum measured femtoscopic source sizes for protons and deuterons start at $2.73^{+0.05}_{-0.05}$ and $3.10^{+1.04}_{-0.86}$~fm, respectively, for the 30–50$\%$ centrality of the collisions. Moreover, the $m_{\rm{T}}$-scaling obtained for the \pP and \pd systems is compatible within 1$\sigma$ of the uncertainties. These findings provide new input for fundamental studies on the production of light (anti)nuclei under extreme conditions.
DOI: 10.17182/hepdata.165812.v1/t21
title: "Figure 3 left, panel a" of "Femtoscopic study of the proton-proton and proton-deuteron systems in heavy-ion collisions at the LHC"

description: proton-deuteron (same charge) correlation function for centrality 0-10% from Pb-Pb collisions at 5020 GeV
description: This work reports femtoscopy correlations of $p-p (\overline{p}-\overline{p})$ and $p-d (\overline{p}-\overline{d})$ pairs measured in Pb--Pb collisions at center-of-mass energy $\sqrt{s_{\rm NN}}$ = 5.02~TeV by the ALICE Collaboration. A fit to the measured proton-proton correlation functions allows one to extract the dependence of the nucleon femtoscopic radius of the particle-emitting source as a function of the pair transverse mass ($m_\text{T}$) and of the average charge particle multiplicity $\langle\text{dN}_\text{ch}/\text{d}\eta\rangle^{1/3}$ for three centrality intervals (0--10$\%$, 10--30$\%$, 30--50$\%$). In both cases, the expected power-law and liner scalings are observed, respectively. The measured \pd correlations can be described by both two- and three-body calculations, indicating that the femtoscopy observable is not sensitive to the short-distance features of the dynamics of the p-(p-n) system, due to the large inter-particle distances in \mbox{Pb--Pb} collisions at the LHC. Indeed, in this study, the minimum measured femtoscopic source sizes for protons and deuterons start at $2.73^{+0.05}_{-0.05}$ and $3.10^{+1.04}_{-0.86}$~fm, respectively, for the 30–50$\%$ centrality of the collisions. Moreover, the $m_{\rm{T}}$-scaling obtained for the \pP and \pd systems is compatible within 1$\sigma$ of the uncertainties. These findings provide new input for fundamental studies on the production of light (anti)nuclei under extreme conditions.
DOI: 10.17182/hepdata.165812.v1/t22
title: "Figure 3 centre, panel b" of "Femtoscopic study of the proton-proton and proton-deuteron systems in heavy-ion collisions at the LHC"

description: proton-deuteron (same charge) correlation function for centrality 10-30% from Pb-Pb collisions at 5020 GeV
description: This work reports femtoscopy correlations of $p-p (\overline{p}-\overline{p})$ and $p-d (\overline{p}-\overline{d})$ pairs measured in Pb--Pb collisions at center-of-mass energy $\sqrt{s_{\rm NN}}$ = 5.02~TeV by the ALICE Collaboration. A fit to the measured proton-proton correlation functions allows one to extract the dependence of the nucleon femtoscopic radius of the particle-emitting source as a function of the pair transverse mass ($m_\text{T}$) and of the average charge particle multiplicity $\langle\text{dN}_\text{ch}/\text{d}\eta\rangle^{1/3}$ for three centrality intervals (0--10$\%$, 10--30$\%$, 30--50$\%$). In both cases, the expected power-law and liner scalings are observed, respectively. The measured \pd correlations can be described by both two- and three-body calculations, indicating that the femtoscopy observable is not sensitive to the short-distance features of the dynamics of the p-(p-n) system, due to the large inter-particle distances in \mbox{Pb--Pb} collisions at the LHC. Indeed, in this study, the minimum measured femtoscopic source sizes for protons and deuterons start at $2.73^{+0.05}_{-0.05}$ and $3.10^{+1.04}_{-0.86}$~fm, respectively, for the 30–50$\%$ centrality of the collisions. Moreover, the $m_{\rm{T}}$-scaling obtained for the \pP and \pd systems is compatible within 1$\sigma$ of the uncertainties. These findings provide new input for fundamental studies on the production of light (anti)nuclei under extreme conditions.
DOI: 10.17182/hepdata.165812.v1/t23
title: "Figure 3 right, panel c" of "Femtoscopic study of the proton-proton and proton-deuteron systems in heavy-ion collisions at the LHC"

description: proton-deuteron (same charge) correlation function for centrality 30-50% from Pb-Pb collisions at 5020 GeV
description: This work reports femtoscopy correlations of $p-p (\overline{p}-\overline{p})$ and $p-d (\overline{p}-\overline{d})$ pairs measured in Pb--Pb collisions at center-of-mass energy $\sqrt{s_{\rm NN}}$ = 5.02~TeV by the ALICE Collaboration. A fit to the measured proton-proton correlation functions allows one to extract the dependence of the nucleon femtoscopic radius of the particle-emitting source as a function of the pair transverse mass ($m_\text{T}$) and of the average charge particle multiplicity $\langle\text{dN}_\text{ch}/\text{d}\eta\rangle^{1/3}$ for three centrality intervals (0--10$\%$, 10--30$\%$, 30--50$\%$). In both cases, the expected power-law and liner scalings are observed, respectively. The measured \pd correlations can be described by both two- and three-body calculations, indicating that the femtoscopy observable is not sensitive to the short-distance features of the dynamics of the p-(p-n) system, due to the large inter-particle distances in \mbox{Pb--Pb} collisions at the LHC. Indeed, in this study, the minimum measured femtoscopic source sizes for protons and deuterons start at $2.73^{+0.05}_{-0.05}$ and $3.10^{+1.04}_{-0.86}$~fm, respectively, for the 30–50$\%$ centrality of the collisions. Moreover, the $m_{\rm{T}}$-scaling obtained for the \pP and \pd systems is compatible within 1$\sigma$ of the uncertainties. These findings provide new input for fundamental studies on the production of light (anti)nuclei under extreme conditions.
DOI: 10.17182/hepdata.167367.v1/t1
title: "Figure 2" of "Search for heavy neutral leptons in decays of W bosons produced in 13 TeV $pp$ collisions using prompt signatures in the ATLAS detector"

description: Comparison between the data and estimated background at preselection level. Events entering the SRs defined in Section 5 are vetoed. The events are classified in terms of the number of leptons and their flavours, as well as the number of b-jets. The ℓ<sup>±</sup>ℓ<sup>±</sup> bins have a ≥2 signal leptons selection, with no requirement on the number of baseline leptons; the ℓ<sup>±</sup>ℓ<sup>±</sup>ℓ'<sup>∓</sup> bins have a =3 signal leptons selection. The uncertainties shown with hashed bands, include only the statistical uncertainties and the full uncertainties associated with the data-driven background estimates. The bottom panel shows the ratio of the observed data yields to the predicted background yields.
description: The existence of right-handed neutrinos with Majorana masses below the electroweak scale could help address the origins of neutrino masses, the matter-antimatter asymmetry, and dark matter. In this paper, leptonic decays of $W$ bosons from 140 fb$^{-1}$ of 13 TeV proton-proton collisions at the LHC, reconstructed in the ATLAS experiment, are used to search for heavy neutral leptons produced through their mixing with muon or electron neutrinos in a scenario with lepton number violation. The search is conducted using prompt leptonic decay signatures. The considered final states require two same-charge leptons or three leptons, while vetoing three-lepton same-flavour topologies. No significant excess over the expected Standard Model backgrounds is found, leading to constraints on the heavy neutral lepton's mixing with muon and electron neutrinos for heavy-neutral-lepton masses. The analysis excludes $|U_{e}|^2$ values above $8\times 10^{-5}$ and $|U_{\mu}|^2$ values above $5.0 \times 10^{-5}$ in the full mass range of 8-65 GeV. The strongest constraints are placed on heavy-neutral-lepton masses in the range 15-30 GeV of $|U_{e}|^2 &lt; 1.1 \times 10^{-5}$ and $|U_{\mu}|^2 &lt; 5 \times 10^{-6}$.
DOI: 10.17182/hepdata.167367.v1/t10
title: "Figure 7 from Auxiliary material" of "Search for heavy neutral leptons in decays of W bosons produced in 13 TeV $pp$ collisions using prompt signatures in the ATLAS detector"

description: Identification of the three lepton signal region chosen to set the limits for the μ<sup>±</sup>μ<sup>±</sup>e<sup>∓</sup> decay mode. The observed (continuous line) and expected (dashed line) exclusion limits at 95&percnt; CL are also shown.
description: The existence of right-handed neutrinos with Majorana masses below the electroweak scale could help address the origins of neutrino masses, the matter-antimatter asymmetry, and dark matter. In this paper, leptonic decays of $W$ bosons from 140 fb$^{-1}$ of 13 TeV proton-proton collisions at the LHC, reconstructed in the ATLAS experiment, are used to search for heavy neutral leptons produced through their mixing with muon or electron neutrinos in a scenario with lepton number violation. The search is conducted using prompt leptonic decay signatures. The considered final states require two same-charge leptons or three leptons, while vetoing three-lepton same-flavour topologies. No significant excess over the expected Standard Model backgrounds is found, leading to constraints on the heavy neutral lepton's mixing with muon and electron neutrinos for heavy-neutral-lepton masses. The analysis excludes $|U_{e}|^2$ values above $8\times 10^{-5}$ and $|U_{\mu}|^2$ values above $5.0 \times 10^{-5}$ in the full mass range of 8-65 GeV. The strongest constraints are placed on heavy-neutral-lepton masses in the range 15-30 GeV of $|U_{e}|^2 &lt; 1.1 \times 10^{-5}$ and $|U_{\mu}|^2 &lt; 5 \times 10^{-6}$.
DOI: 10.17182/hepdata.167367.v1/t2
title: "Figure 3" of "Search for heavy neutral leptons in decays of W bosons produced in 13 TeV $pp$ collisions using prompt signatures in the ATLAS detector"

description: Comparison between the data and estimated background in the validation regions. The hatched band represents the total uncertainty in the estimated background.
description: The existence of right-handed neutrinos with Majorana masses below the electroweak scale could help address the origins of neutrino masses, the matter-antimatter asymmetry, and dark matter. In this paper, leptonic decays of $W$ bosons from 140 fb$^{-1}$ of 13 TeV proton-proton collisions at the LHC, reconstructed in the ATLAS experiment, are used to search for heavy neutral leptons produced through their mixing with muon or electron neutrinos in a scenario with lepton number violation. The search is conducted using prompt leptonic decay signatures. The considered final states require two same-charge leptons or three leptons, while vetoing three-lepton same-flavour topologies. No significant excess over the expected Standard Model backgrounds is found, leading to constraints on the heavy neutral lepton's mixing with muon and electron neutrinos for heavy-neutral-lepton masses. The analysis excludes $|U_{e}|^2$ values above $8\times 10^{-5}$ and $|U_{\mu}|^2$ values above $5.0 \times 10^{-5}$ in the full mass range of 8-65 GeV. The strongest constraints are placed on heavy-neutral-lepton masses in the range 15-30 GeV of $|U_{e}|^2 &lt; 1.1 \times 10^{-5}$ and $|U_{\mu}|^2 &lt; 5 \times 10^{-6}$.
DOI: 10.17182/hepdata.167367.v1/t3
title: "Figure 4a" of "Search for heavy neutral leptons in decays of W bosons produced in 13 TeV $pp$ collisions using prompt signatures in the ATLAS detector"

description: Observed 95&percnt; confidence level (CL) exclusion limits for the (a) |U<sub>e</sub>|<sup>2</sup> and (b) |U<sub>μ</sub>|<sup>2</sup> mixing parameters versus the HNL mass. The expected (dashed line) exclusion limits are also shown. The 1σ and 2σ uncertainty bands around the expected exclusion limit reflect uncertainties in signal and background yields.
description: The existence of right-handed neutrinos with Majorana masses below the electroweak scale could help address the origins of neutrino masses, the matter-antimatter asymmetry, and dark matter. In this paper, leptonic decays of $W$ bosons from 140 fb$^{-1}$ of 13 TeV proton-proton collisions at the LHC, reconstructed in the ATLAS experiment, are used to search for heavy neutral leptons produced through their mixing with muon or electron neutrinos in a scenario with lepton number violation. The search is conducted using prompt leptonic decay signatures. The considered final states require two same-charge leptons or three leptons, while vetoing three-lepton same-flavour topologies. No significant excess over the expected Standard Model backgrounds is found, leading to constraints on the heavy neutral lepton's mixing with muon and electron neutrinos for heavy-neutral-lepton masses. The analysis excludes $|U_{e}|^2$ values above $8\times 10^{-5}$ and $|U_{\mu}|^2$ values above $5.0 \times 10^{-5}$ in the full mass range of 8-65 GeV. The strongest constraints are placed on heavy-neutral-lepton masses in the range 15-30 GeV of $|U_{e}|^2 &lt; 1.1 \times 10^{-5}$ and $|U_{\mu}|^2 &lt; 5 \times 10^{-6}$.
DOI: 10.17182/hepdata.167367.v1/t4
title: "Figure 4b" of "Search for heavy neutral leptons in decays of W bosons produced in 13 TeV $pp$ collisions using prompt signatures in the ATLAS detector"

description: Observed 95&percnt; confidence level (CL) exclusion limits for the (a) |U<sub>e</sub>|<sup>2</sup> and (b) |U<sub>μ</sub>|<sup>2</sup> mixing parameters versus the HNL mass. The expected (dashed line) exclusion limits are also shown. The 1σ and 2σ uncertainty bands around the expected exclusion limit reflect uncertainties in signal and background yields.
description: The existence of right-handed neutrinos with Majorana masses below the electroweak scale could help address the origins of neutrino masses, the matter-antimatter asymmetry, and dark matter. In this paper, leptonic decays of $W$ bosons from 140 fb$^{-1}$ of 13 TeV proton-proton collisions at the LHC, reconstructed in the ATLAS experiment, are used to search for heavy neutral leptons produced through their mixing with muon or electron neutrinos in a scenario with lepton number violation. The search is conducted using prompt leptonic decay signatures. The considered final states require two same-charge leptons or three leptons, while vetoing three-lepton same-flavour topologies. No significant excess over the expected Standard Model backgrounds is found, leading to constraints on the heavy neutral lepton's mixing with muon and electron neutrinos for heavy-neutral-lepton masses. The analysis excludes $|U_{e}|^2$ values above $8\times 10^{-5}$ and $|U_{\mu}|^2$ values above $5.0 \times 10^{-5}$ in the full mass range of 8-65 GeV. The strongest constraints are placed on heavy-neutral-lepton masses in the range 15-30 GeV of $|U_{e}|^2 &lt; 1.1 \times 10^{-5}$ and $|U_{\mu}|^2 &lt; 5 \times 10^{-6}$.
DOI: 10.17182/hepdata.167367.v1/t5
title: "Figure 2 from Auxiliary material" of "Search for heavy neutral leptons in decays of W bosons produced in 13 TeV $pp$ collisions using prompt signatures in the ATLAS detector"

description: Data and estimated background comparison in the three lepton SRs defined for the e<sup>±</sup>e<sup>±</sup>μ<sup>∓</sup> decay mode. The hatched band represents the total uncertainty of the background. These signal regions are not orthogonal by construction, and data events can be found in more than one signal region.
description: The existence of right-handed neutrinos with Majorana masses below the electroweak scale could help address the origins of neutrino masses, the matter-antimatter asymmetry, and dark matter. In this paper, leptonic decays of $W$ bosons from 140 fb$^{-1}$ of 13 TeV proton-proton collisions at the LHC, reconstructed in the ATLAS experiment, are used to search for heavy neutral leptons produced through their mixing with muon or electron neutrinos in a scenario with lepton number violation. The search is conducted using prompt leptonic decay signatures. The considered final states require two same-charge leptons or three leptons, while vetoing three-lepton same-flavour topologies. No significant excess over the expected Standard Model backgrounds is found, leading to constraints on the heavy neutral lepton's mixing with muon and electron neutrinos for heavy-neutral-lepton masses. The analysis excludes $|U_{e}|^2$ values above $8\times 10^{-5}$ and $|U_{\mu}|^2$ values above $5.0 \times 10^{-5}$ in the full mass range of 8-65 GeV. The strongest constraints are placed on heavy-neutral-lepton masses in the range 15-30 GeV of $|U_{e}|^2 &lt; 1.1 \times 10^{-5}$ and $|U_{\mu}|^2 &lt; 5 \times 10^{-6}$.
DOI: 10.17182/hepdata.167367.v1/t6
title: "Figure 3 from Auxiliary material" of "Search for heavy neutral leptons in decays of W bosons produced in 13 TeV $pp$ collisions using prompt signatures in the ATLAS detector"

description: Data and estimated background comparison in the three lepton SRs defined for the μ<sup>±</sup>μ<sup>±</sup>e<sup>∓</sup> decay mode. The hatched band represents the total uncertainty of the background. These signal regions are not orthogonal by construction, and data events can be found in more than one signal region.
description: The existence of right-handed neutrinos with Majorana masses below the electroweak scale could help address the origins of neutrino masses, the matter-antimatter asymmetry, and dark matter. In this paper, leptonic decays of $W$ bosons from 140 fb$^{-1}$ of 13 TeV proton-proton collisions at the LHC, reconstructed in the ATLAS experiment, are used to search for heavy neutral leptons produced through their mixing with muon or electron neutrinos in a scenario with lepton number violation. The search is conducted using prompt leptonic decay signatures. The considered final states require two same-charge leptons or three leptons, while vetoing three-lepton same-flavour topologies. No significant excess over the expected Standard Model backgrounds is found, leading to constraints on the heavy neutral lepton's mixing with muon and electron neutrinos for heavy-neutral-lepton masses. The analysis excludes $|U_{e}|^2$ values above $8\times 10^{-5}$ and $|U_{\mu}|^2$ values above $5.0 \times 10^{-5}$ in the full mass range of 8-65 GeV. The strongest constraints are placed on heavy-neutral-lepton masses in the range 15-30 GeV of $|U_{e}|^2 &lt; 1.1 \times 10^{-5}$ and $|U_{\mu}|^2 &lt; 5 \times 10^{-6}$.