cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.140530.v1/t72
title: "Table 72" of "Pursuit of paired dijet resonances in the Run 2 dataset with ATLAS"

description: The expected and observed limits on $m_{\langle 2j \rangle}$ for Gaussian signal templates using a 4-parameter fit function for 0.32 &lt; $\alpha$ &lt; 0.34.
description: A search for new resonances decaying into pairs of dijet systems is reported using the Run 2 dataset of proton-proton collisions recorded by ATLAS at at high transverse momentum.
DOI: 10.17182/hepdata.140530.v1/t73
title: "Table 73" of "Pursuit of paired dijet resonances in the Run 2 dataset with ATLAS"

description: The product of the analysis acceptance and selection efficiency for all analysis selection criteria is shown as a function of $m_Y$ and $m_{X}/m_{Y}$.
description: A search for new resonances decaying into pairs of dijet systems is reported using the Run 2 dataset of proton-proton collisions recorded by ATLAS at at high transverse momentum.
DOI: 10.17182/hepdata.140530.v1/t74
title: "Table 74" of "Pursuit of paired dijet resonances in the Run 2 dataset with ATLAS"

description: The cross-section of the signal samples is shown as a function of $m_Y$ and $m_{X}/m_{Y}$.
description: A search for new resonances decaying into pairs of dijet systems is reported using the Run 2 dataset of proton-proton collisions recorded by ATLAS at at high transverse momentum.
DOI: 10.17182/hepdata.140801.v1/t1
title: "Figure 2a: CR ttW+jets (+)" of "Observation of four-top-quark production in the multilepton final state with the ATLAS detector"

description: Post-fit distributions for the number of jets ($N_{j}$) in CR $t\bar{t}W^{+}$+jets. The QmisID represents the backgrounds with a mis-assigned charge. HF e and HF $\mu$ are the backgrounds with fake/non-prompt leptons. Mat. Conv. and Low $m_{\gamma*}$ are the material and virtual photon conversions.
description: A measurment is presented for four-top-quark production using an integrated luminosity of 140 fb\(^{-1}\) of proton--proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC. Events are selected if they contain a same-sign lepton pair or at least three leptons (electrons or muons). Jet multiplicity, jet flavour and event kinematics are used to separate signal from the background through a multivariate discriminant, and dedicated control regions are used to constrain the dominant backgrounds. The four-top-quark production cross section is measured to be $22.5^{+6.6}_{-5.5}$ fb. This corresponds to an observed (expected) significance with respect to the background-only hypothesis of 6.1 (4.3) standard deviations and provides evidence for this process.
DOI: 10.17182/hepdata.140801.v1/t2
title: "Figure 2b: CR ttW+jets (-)" of "Observation of four-top-quark production in the multilepton final state with the ATLAS detector"

description: Post-fit distributions for the number of jets ($N_{j}$) in CR $t\bar{t}W^{-}$+jets. The QmisID represents the backgrounds with a mis-assigned charge. HF e and HF $\mu$ are the backgrounds with fake/non-prompt leptons. Mat. Conv. and Low $m_{\gamma*}$ are the material and virtual photon conversions.
description: A measurment is presented for four-top-quark production using an integrated luminosity of 140 fb\(^{-1}\) of proton--proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC. Events are selected if they contain a same-sign lepton pair or at least three leptons (electrons or muons). Jet multiplicity, jet flavour and event kinematics are used to separate signal from the background through a multivariate discriminant, and dedicated control regions are used to constrain the dominant backgrounds. The four-top-quark production cross section is measured to be $22.5^{+6.6}_{-5.5}$ fb. This corresponds to an observed (expected) significance with respect to the background-only hypothesis of 6.1 (4.3) standard deviations and provides evidence for this process.
DOI: 10.17182/hepdata.140801.v1/t3
title: "Figure 2c: CR 1b(+)" of "Observation of four-top-quark production in the multilepton final state with the ATLAS detector"

description: Post-fit distributions for the number of jets ($N_{j}$) in CR 1b(+). The QmisID represents the backgrounds with a mis-assigned charge. HF e and HF $\mu$ are the backgrounds with fake/non-prompt leptons. Mat. Conv. and Low $m_{\gamma*}$ are the material and virtual photon conversions.
description: A measurment is presented for four-top-quark production using an integrated luminosity of 140 fb\(^{-1}\) of proton--proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC. Events are selected if they contain a same-sign lepton pair or at least three leptons (electrons or muons). Jet multiplicity, jet flavour and event kinematics are used to separate signal from the background through a multivariate discriminant, and dedicated control regions are used to constrain the dominant backgrounds. The four-top-quark production cross section is measured to be $22.5^{+6.6}_{-5.5}$ fb. This corresponds to an observed (expected) significance with respect to the background-only hypothesis of 6.1 (4.3) standard deviations and provides evidence for this process.
DOI: 10.17182/hepdata.140801.v1/t4
title: "Figure 2d: CR 1b(-)" of "Observation of four-top-quark production in the multilepton final state with the ATLAS detector"

description: Post-fit distributions for the number of jets ($N_{j}$) in CR 1b(-). The QmisID represents the backgrounds with a mis-assigned charge. HF e and HF $\mu$ are the backgrounds with fake/non-prompt leptons. Mat. Conv. and Low $m_{\gamma*}$ are the material and virtual photon conversions.
description: A measurment is presented for four-top-quark production using an integrated luminosity of 140 fb\(^{-1}\) of proton--proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC. Events are selected if they contain a same-sign lepton pair or at least three leptons (electrons or muons). Jet multiplicity, jet flavour and event kinematics are used to separate signal from the background through a multivariate discriminant, and dedicated control regions are used to constrain the dominant backgrounds. The four-top-quark production cross section is measured to be $22.5^{+6.6}_{-5.5}$ fb. This corresponds to an observed (expected) significance with respect to the background-only hypothesis of 6.1 (4.3) standard deviations and provides evidence for this process.
DOI: 10.17182/hepdata.140801.v1/t5
title: "Figure 3: ttW validation" of "Observation of four-top-quark production in the multilepton final state with the ATLAS detector"

description: Post-fit distribution for the difference between the number of positive events and the number of negative events ($N_{+}-N_{-}$) as a function of the number of jets ($N_{j}$) in the sum of four $t\bar{t}W$ CRs and the SR.
description: A measurment is presented for four-top-quark production using an integrated luminosity of 140 fb\(^{-1}\) of proton--proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC. Events are selected if they contain a same-sign lepton pair or at least three leptons (electrons or muons). Jet multiplicity, jet flavour and event kinematics are used to separate signal from the background through a multivariate discriminant, and dedicated control regions are used to constrain the dominant backgrounds. The four-top-quark production cross section is measured to be $22.5^{+6.6}_{-5.5}$ fb. This corresponds to an observed (expected) significance with respect to the background-only hypothesis of 6.1 (4.3) standard deviations and provides evidence for this process.
DOI: 10.17182/hepdata.140801.v1/t6
title: "Figure 4a: CR HF e" of "Observation of four-top-quark production in the multilepton final state with the ATLAS detector"

description: Post-fit distributions for the fitted variables in the CRs for the fake/non-prompt lepton background - CR HF e. The QmisID represents the backgrounds with a mis-assigned charge. HF e and HF $\mu$ are the backgrounds with fake/non-prompt leptons. Mat. Conv. and Low $m_{\gamma*}$ are the material and virtual photon conversions.
description: A measurment is presented for four-top-quark production using an integrated luminosity of 140 fb\(^{-1}\) of proton--proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC. Events are selected if they contain a same-sign lepton pair or at least three leptons (electrons or muons). Jet multiplicity, jet flavour and event kinematics are used to separate signal from the background through a multivariate discriminant, and dedicated control regions are used to constrain the dominant backgrounds. The four-top-quark production cross section is measured to be $22.5^{+6.6}_{-5.5}$ fb. This corresponds to an observed (expected) significance with respect to the background-only hypothesis of 6.1 (4.3) standard deviations and provides evidence for this process.
DOI: 10.17182/hepdata.140801.v1/t10
title: "Figure 5: GNN in SR" of "Observation of four-top-quark production in the multilepton final state with the ATLAS detector"

description: Comparison between data and the predictions after a fit to data for the GNN distribution in the SR. The QmisID represents the backgrounds with a mis-assigned charge. HF e and HF $\mu$ are the backgrounds with fake/non-prompt leptons. Mat. Conv. and Low $m_{\gamma*}$ are the material and virtual photon conversions.
description: A measurment is presented for four-top-quark production using an integrated luminosity of 140 fb\(^{-1}\) of proton--proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC. Events are selected if they contain a same-sign lepton pair or at least three leptons (electrons or muons). Jet multiplicity, jet flavour and event kinematics are used to separate signal from the background through a multivariate discriminant, and dedicated control regions are used to constrain the dominant backgrounds. The four-top-quark production cross section is measured to be $22.5^{+6.6}_{-5.5}$ fb. This corresponds to an observed (expected) significance with respect to the background-only hypothesis of 6.1 (4.3) standard deviations and provides evidence for this process.
DOI: 10.17182/hepdata.140801.v1/t11
title: "Figure 6a: number of jets in GNN &gt;= 0.6" of "Observation of four-top-quark production in the multilepton final state with the ATLAS detector"

description: Comparison between data and prediction after the fit to data in the signal-enriched region with GNN &gt;= 0.6 for the distributions of the number of jets. The QmisID represents the backgrounds with a mis-assigned charge. HF e and HF $\mu$ are the backgrounds with fake/non-prompt leptons. Mat. Conv. and Low $m_{\gamma*}$ are the material and virtual photon conversions.
description: A measurment is presented for four-top-quark production using an integrated luminosity of 140 fb\(^{-1}\) of proton--proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC. Events are selected if they contain a same-sign lepton pair or at least three leptons (electrons or muons). Jet multiplicity, jet flavour and event kinematics are used to separate signal from the background through a multivariate discriminant, and dedicated control regions are used to constrain the dominant backgrounds. The four-top-quark production cross section is measured to be $22.5^{+6.6}_{-5.5}$ fb. This corresponds to an observed (expected) significance with respect to the background-only hypothesis of 6.1 (4.3) standard deviations and provides evidence for this process.
DOI: 10.17182/hepdata.140801.v1/t12
title: "Figure 6b: number of b-jets in GNN &gt;= 0.6" of "Observation of four-top-quark production in the multilepton final state with the ATLAS detector"

description: Comparison between data and prediction after the fit to data in the signal-enriched region with GNN &gt;= 0.6 for the distributions of the number of b-jets. The QmisID represents the backgrounds with a mis-assigned charge. HF e and HF $\mu$ are the backgrounds with fake/non-prompt leptons. Mat. Conv. and Low $m_{\gamma*}$ are the material and virtual photon conversions.
description: A measurment is presented for four-top-quark production using an integrated luminosity of 140 fb\(^{-1}\) of proton--proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC. Events are selected if they contain a same-sign lepton pair or at least three leptons (electrons or muons). Jet multiplicity, jet flavour and event kinematics are used to separate signal from the background through a multivariate discriminant, and dedicated control regions are used to constrain the dominant backgrounds. The four-top-quark production cross section is measured to be $22.5^{+6.6}_{-5.5}$ fb. This corresponds to an observed (expected) significance with respect to the background-only hypothesis of 6.1 (4.3) standard deviations and provides evidence for this process.
DOI: 10.17182/hepdata.140801.v1/t16
title: "Figure 9: NLL values of Higgs oblique parameter" of "Observation of four-top-quark production in the multilepton final state with the ATLAS detector"

description: The negative log-likelihood values as a function of the Higgs oblique parameter $\hat{H}$.
description: A measurment is presented for four-top-quark production using an integrated luminosity of 140 fb\(^{-1}\) of proton--proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC. Events are selected if they contain a same-sign lepton pair or at least three leptons (electrons or muons). Jet multiplicity, jet flavour and event kinematics are used to separate signal from the background through a multivariate discriminant, and dedicated control regions are used to constrain the dominant backgrounds. The four-top-quark production cross section is measured to be $22.5^{+6.6}_{-5.5}$ fb. This corresponds to an observed (expected) significance with respect to the background-only hypothesis of 6.1 (4.3) standard deviations and provides evidence for this process.
DOI: 10.17182/hepdata.140801.v1/t7
title: "Figure 4b: CR HF mu" of "Observation of four-top-quark production in the multilepton final state with the ATLAS detector"

description: Post-fit distributions for the fitted variables in the CRs for the fake/non-prompt lepton background - CR HF $\mu$. The QmisID represents the backgrounds with a mis-assigned charge. HF e and HF $\mu$ are the backgrounds with fake/non-prompt leptons. Mat. Conv. and Low $m_{\gamma*}$ are the material and virtual photon conversions.
description: A measurment is presented for four-top-quark production using an integrated luminosity of 140 fb\(^{-1}\) of proton--proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC. Events are selected if they contain a same-sign lepton pair or at least three leptons (electrons or muons). Jet multiplicity, jet flavour and event kinematics are used to separate signal from the background through a multivariate discriminant, and dedicated control regions are used to constrain the dominant backgrounds. The four-top-quark production cross section is measured to be $22.5^{+6.6}_{-5.5}$ fb. This corresponds to an observed (expected) significance with respect to the background-only hypothesis of 6.1 (4.3) standard deviations and provides evidence for this process.
DOI: 10.17182/hepdata.140801.v1/t8
title: "Figure 4c: CR Mat. Conv." of "Observation of four-top-quark production in the multilepton final state with the ATLAS detector"

description: Post-fit distributions for the fitted variables in the CRs for the fake/non-prompt lepton background - CR Mat. Conv.. The QmisID represents the backgrounds with a mis-assigned charge. HF e and HF $\mu$ are the backgrounds with fake/non-prompt leptons. Mat. Conv. and Low $m_{\gamma*}$ are the material and virtual photon conversions.
description: A measurment is presented for four-top-quark production using an integrated luminosity of 140 fb\(^{-1}\) of proton--proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC. Events are selected if they contain a same-sign lepton pair or at least three leptons (electrons or muons). Jet multiplicity, jet flavour and event kinematics are used to separate signal from the background through a multivariate discriminant, and dedicated control regions are used to constrain the dominant backgrounds. The four-top-quark production cross section is measured to be $22.5^{+6.6}_{-5.5}$ fb. This corresponds to an observed (expected) significance with respect to the background-only hypothesis of 6.1 (4.3) standard deviations and provides evidence for this process.
DOI: 10.17182/hepdata.140801.v1/t9
title: "Figure 4d: CR Low m_{gamma*}" of "Observation of four-top-quark production in the multilepton final state with the ATLAS detector"

description: Post-fit distributions for the fitted variables in the CRs for the fake/non-prompt lepton background - CR Low $m_{\gamma*}$. The QmisID represents the backgrounds with a mis-assigned charge. HF e and HF $\mu$ are the backgrounds with fake/non-prompt leptons. Mat. Conv. and Low $m_{\gamma*}$ are the material and virtual photon conversions.
description: A measurment is presented for four-top-quark production using an integrated luminosity of 140 fb\(^{-1}\) of proton--proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC. Events are selected if they contain a same-sign lepton pair or at least three leptons (electrons or muons). Jet multiplicity, jet flavour and event kinematics are used to separate signal from the background through a multivariate discriminant, and dedicated control regions are used to constrain the dominant backgrounds. The four-top-quark production cross section is measured to be $22.5^{+6.6}_{-5.5}$ fb. This corresponds to an observed (expected) significance with respect to the background-only hypothesis of 6.1 (4.3) standard deviations and provides evidence for this process.
DOI: 10.17182/hepdata.140801.v1/t13
title: "Figure 6c: Leading four PCBT scores of jets (GNN &gt;= 0.6)" of "Observation of four-top-quark production in the multilepton final state with the ATLAS detector"

description: Comparison between data and prediction after the fit to data in the signal-enriched region with GNN &gt;= 0.6 for the distributions of the sum of the four highest PCBT scores of jets in the event. The QmisID represents the backgrounds with a mis-assigned charge. HF e and HF $\mu$ are the backgrounds with fake/non-prompt leptons. Mat. Conv. and Low $m_{\gamma*}$ are the material and virtual photon conversions.
description: A measurment is presented for four-top-quark production using an integrated luminosity of 140 fb\(^{-1}\) of proton--proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC. Events are selected if they contain a same-sign lepton pair or at least three leptons (electrons or muons). Jet multiplicity, jet flavour and event kinematics are used to separate signal from the background through a multivariate discriminant, and dedicated control regions are used to constrain the dominant backgrounds. The four-top-quark production cross section is measured to be $22.5^{+6.6}_{-5.5}$ fb. This corresponds to an observed (expected) significance with respect to the background-only hypothesis of 6.1 (4.3) standard deviations and provides evidence for this process.
DOI: 10.17182/hepdata.140801.v1/t14
title: "Figure 6d: HT (GNN &gt;= 0.6)" of "Observation of four-top-quark production in the multilepton final state with the ATLAS detector"

description: Comparison between data and prediction after the fit to data in the signal-enriched region with GNN &gt;= 0.6 for the distributions of the sum of transverse momenta over all jets and leptons in the event. The QmisID represents the backgrounds with a mis-assigned charge. HF e and HF $\mu$ are the backgrounds with fake/non-prompt leptons. Mat. Conv. and Low $m_{\gamma*}$ are the material and virtual photon conversions.
description: A measurment is presented for four-top-quark production using an integrated luminosity of 140 fb\(^{-1}\) of proton--proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC. Events are selected if they contain a same-sign lepton pair or at least three leptons (electrons or muons). Jet multiplicity, jet flavour and event kinematics are used to separate signal from the background through a multivariate discriminant, and dedicated control regions are used to constrain the dominant backgrounds. The four-top-quark production cross section is measured to be $22.5^{+6.6}_{-5.5}$ fb. This corresponds to an observed (expected) significance with respect to the background-only hypothesis of 6.1 (4.3) standard deviations and provides evidence for this process.
DOI: 10.17182/hepdata.140801.v1/t15
title: "Figure 7: NLL contour of ttt and tttt cross sections" of "Observation of four-top-quark production in the multilepton final state with the ATLAS detector"

description: Two-dimensional negative log-likelihood contour for the $t\bar{t}t$ cross section ($\sigma_{t\bar{t}t}$) versus the $t\bar{t}t\bar{t}$ cross section ($\sigma_{t\bar{t}t\bar{t}}$) when the normalisation of both processes are treated as free parameters in the fit.
description: A measurment is presented for four-top-quark production using an integrated luminosity of 140 fb\(^{-1}\) of proton--proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC. Events are selected if they contain a same-sign lepton pair or at least three leptons (electrons or muons). Jet multiplicity, jet flavour and event kinematics are used to separate signal from the background through a multivariate discriminant, and dedicated control regions are used to constrain the dominant backgrounds. The four-top-quark production cross section is measured to be $22.5^{+6.6}_{-5.5}$ fb. This corresponds to an observed (expected) significance with respect to the background-only hypothesis of 6.1 (4.3) standard deviations and provides evidence for this process.
DOI: 10.17182/hepdata.140801.v1/t17
title: "The measured and expected cross-sections of tttt production." of "Observation of four-top-quark production in the multilepton final state with the ATLAS detector"

description: The measured and expected cross-sections of $t\bar{t}t\bar{t}$ production.
description: A measurment is presented for four-top-quark production using an integrated luminosity of 140 fb\(^{-1}\) of proton--proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the LHC. Events are selected if they contain a same-sign lepton pair or at least three leptons (electrons or muons). Jet multiplicity, jet flavour and event kinematics are used to separate signal from the background through a multivariate discriminant, and dedicated control regions are used to constrain the dominant backgrounds. The four-top-quark production cross section is measured to be $22.5^{+6.6}_{-5.5}$ fb. This corresponds to an observed (expected) significance with respect to the background-only hypothesis of 6.1 (4.3) standard deviations and provides evidence for this process.