cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.68128.v1/t12
title: "Table 12" of "Jet and underlying event properties as a function of particle multiplicity in proton-proton collisions at sqrt(s) = 7 TeV"

description: Jet $p_T$ spectrum, $|\eta^{ch.jet}| &lt; 1.9$, $110 &lt; N_\text{ch} \le 140$.
description: CERN-LHC. Characteristics of multi-particle production in proton-proton collisions at $\sqrt{s}$=7 TeV are studied as a function of the charged-particle multiplicity, $N_{ch}$. The produced particles are separated into two classes: those belonging to jets and those belonging to the underlying event. Charged particles are measured with pseudorapidity |??|&lt;2.4 and transverse momentum $p_T$ &gt; 0.25 GeV/c. Jets are reconstructed from charged-particles only and required to have $p_T$ &gt; 5 GeV/c. The distributions of jet $p_T$, average $p_T$ of charged particles belonging to the underlying event or to jets, jet rates, and jet shapes are presented as functions of $N_{ch}$ and compared to the predictions of the PYTHIA and HERWIG event generators. Predictions without multi-parton interactions fail completely to describe the $N_{ch}$-dependence observed in the data. For increasing $N_{ch}$, PYTHIA systematically predicts higher jet rates and harder $p_T$ spectra than seen in the data, whereas HERWIG shows the opposite trends. At the highest multiplicity, the data?EUR"model agreement is worse for most observables, indicating the need for further tuning and/or new model ingredients.
Data taken from the RIVET analysis code.
DOI: 10.17182/hepdata.68128.v1/t13
title: "Table 13" of "Jet and underlying event properties as a function of particle multiplicity in proton-proton collisions at sqrt(s) = 7 TeV"

description: Intrajet ring $p_{T}$ density, $10 &lt; N_\text{ch} \le 30$.
description: CERN-LHC. Characteristics of multi-particle production in proton-proton collisions at $\sqrt{s}$=7 TeV are studied as a function of the charged-particle multiplicity, $N_{ch}$. The produced particles are separated into two classes: those belonging to jets and those belonging to the underlying event. Charged particles are measured with pseudorapidity |??|&lt;2.4 and transverse momentum $p_T$ &gt; 0.25 GeV/c. Jets are reconstructed from charged-particles only and required to have $p_T$ &gt; 5 GeV/c. The distributions of jet $p_T$, average $p_T$ of charged particles belonging to the underlying event or to jets, jet rates, and jet shapes are presented as functions of $N_{ch}$ and compared to the predictions of the PYTHIA and HERWIG event generators. Predictions without multi-parton interactions fail completely to describe the $N_{ch}$-dependence observed in the data. For increasing $N_{ch}$, PYTHIA systematically predicts higher jet rates and harder $p_T$ spectra than seen in the data, whereas HERWIG shows the opposite trends. At the highest multiplicity, the data?EUR"model agreement is worse for most observables, indicating the need for further tuning and/or new model ingredients.
Data taken from the RIVET analysis code.
DOI: 10.17182/hepdata.68128.v1/t14
title: "Table 14" of "Jet and underlying event properties as a function of particle multiplicity in proton-proton collisions at sqrt(s) = 7 TeV"

description: Intrajet ring $p_{T}$ density, $30 &lt; N_\text{ch} \le 50$.
description: CERN-LHC. Characteristics of multi-particle production in proton-proton collisions at $\sqrt{s}$=7 TeV are studied as a function of the charged-particle multiplicity, $N_{ch}$. The produced particles are separated into two classes: those belonging to jets and those belonging to the underlying event. Charged particles are measured with pseudorapidity |??|&lt;2.4 and transverse momentum $p_T$ &gt; 0.25 GeV/c. Jets are reconstructed from charged-particles only and required to have $p_T$ &gt; 5 GeV/c. The distributions of jet $p_T$, average $p_T$ of charged particles belonging to the underlying event or to jets, jet rates, and jet shapes are presented as functions of $N_{ch}$ and compared to the predictions of the PYTHIA and HERWIG event generators. Predictions without multi-parton interactions fail completely to describe the $N_{ch}$-dependence observed in the data. For increasing $N_{ch}$, PYTHIA systematically predicts higher jet rates and harder $p_T$ spectra than seen in the data, whereas HERWIG shows the opposite trends. At the highest multiplicity, the data?EUR"model agreement is worse for most observables, indicating the need for further tuning and/or new model ingredients.
Data taken from the RIVET analysis code.
DOI: 10.17182/hepdata.68128.v1/t15
title: "Table 15" of "Jet and underlying event properties as a function of particle multiplicity in proton-proton collisions at sqrt(s) = 7 TeV"

description: Intrajet ring $p_{T}$ density, $50 &lt; N_\text{ch} \le 80$.
description: CERN-LHC. Characteristics of multi-particle production in proton-proton collisions at $\sqrt{s}$=7 TeV are studied as a function of the charged-particle multiplicity, $N_{ch}$. The produced particles are separated into two classes: those belonging to jets and those belonging to the underlying event. Charged particles are measured with pseudorapidity |??|&lt;2.4 and transverse momentum $p_T$ &gt; 0.25 GeV/c. Jets are reconstructed from charged-particles only and required to have $p_T$ &gt; 5 GeV/c. The distributions of jet $p_T$, average $p_T$ of charged particles belonging to the underlying event or to jets, jet rates, and jet shapes are presented as functions of $N_{ch}$ and compared to the predictions of the PYTHIA and HERWIG event generators. Predictions without multi-parton interactions fail completely to describe the $N_{ch}$-dependence observed in the data. For increasing $N_{ch}$, PYTHIA systematically predicts higher jet rates and harder $p_T$ spectra than seen in the data, whereas HERWIG shows the opposite trends. At the highest multiplicity, the data?EUR"model agreement is worse for most observables, indicating the need for further tuning and/or new model ingredients.
Data taken from the RIVET analysis code.
DOI: 10.17182/hepdata.68128.v1/t16
title: "Table 16" of "Jet and underlying event properties as a function of particle multiplicity in proton-proton collisions at sqrt(s) = 7 TeV"

description: Intrajet ring $p_{T}$ density, $80 &lt; N_\text{ch} \le 110$.
description: CERN-LHC. Characteristics of multi-particle production in proton-proton collisions at $\sqrt{s}$=7 TeV are studied as a function of the charged-particle multiplicity, $N_{ch}$. The produced particles are separated into two classes: those belonging to jets and those belonging to the underlying event. Charged particles are measured with pseudorapidity |??|&lt;2.4 and transverse momentum $p_T$ &gt; 0.25 GeV/c. Jets are reconstructed from charged-particles only and required to have $p_T$ &gt; 5 GeV/c. The distributions of jet $p_T$, average $p_T$ of charged particles belonging to the underlying event or to jets, jet rates, and jet shapes are presented as functions of $N_{ch}$ and compared to the predictions of the PYTHIA and HERWIG event generators. Predictions without multi-parton interactions fail completely to describe the $N_{ch}$-dependence observed in the data. For increasing $N_{ch}$, PYTHIA systematically predicts higher jet rates and harder $p_T$ spectra than seen in the data, whereas HERWIG shows the opposite trends. At the highest multiplicity, the data?EUR"model agreement is worse for most observables, indicating the need for further tuning and/or new model ingredients.
Data taken from the RIVET analysis code.
DOI: 10.17182/hepdata.68128.v1/t17
title: "Table 17" of "Jet and underlying event properties as a function of particle multiplicity in proton-proton collisions at sqrt(s) = 7 TeV"

description: Intrajet ring $p_{T}$ density, $110 &lt; N_\text{ch} \le 140$.
description: CERN-LHC. Characteristics of multi-particle production in proton-proton collisions at $\sqrt{s}$=7 TeV are studied as a function of the charged-particle multiplicity, $N_{ch}$. The produced particles are separated into two classes: those belonging to jets and those belonging to the underlying event. Charged particles are measured with pseudorapidity |??|&lt;2.4 and transverse momentum $p_T$ &gt; 0.25 GeV/c. Jets are reconstructed from charged-particles only and required to have $p_T$ &gt; 5 GeV/c. The distributions of jet $p_T$, average $p_T$ of charged particles belonging to the underlying event or to jets, jet rates, and jet shapes are presented as functions of $N_{ch}$ and compared to the predictions of the PYTHIA and HERWIG event generators. Predictions without multi-parton interactions fail completely to describe the $N_{ch}$-dependence observed in the data. For increasing $N_{ch}$, PYTHIA systematically predicts higher jet rates and harder $p_T$ spectra than seen in the data, whereas HERWIG shows the opposite trends. At the highest multiplicity, the data?EUR"model agreement is worse for most observables, indicating the need for further tuning and/or new model ingredients.
Data taken from the RIVET analysis code.
DOI: 10.17182/hepdata.68129.v1/t1
title: "Table 1" of "Measurement of pion, kaon and proton production in proton-proton collisions at $\sqrt{s}=7$ TeV"

description: Combined transverse momentum spectra of PI, K and P, sum of particles and antiparticles, measured at mid-rapidity in pp collisions at SQRT(S) = 7 TeV normalized to the number of inelastic collisions. Statistical and systematic uncertainties are reported. The uncertainty due to the normalization to inelastic collisions (+7-4 %) is not included.
description: CERN-LHC. The measurement of primary $\pi^{\pm}$, K$^{\pm}$, p and $\overline{p}$ production at mid-rapidity ($|y| &lt;$ 0.5) in proton-proton collisions at $\sqrt{s} = 7$ TeV performed with ALICE (A Large Ion Collider Experiment) at the Large Hadron Collider (LHC) is reported. Particle identification is performed using the specific ionization energy loss and time-of-flight information, the ring-imaging Cherenkov technique and the kink-topology identification of weak decays of charged kaons. Transverse momentum spectra are measured from 0.1 up to 3 GeV/$c$ for pions, from 0.2 up to 6 GeV/$c$ for kaons and from 0.3 up to 6 GeV/$c$ for protons. The measured spectra and particle ratios are compared with QCD-inspired models, tuned to reproduce also the earlier measurements performed at the LHC. Furthermore, the integrated particle yields and ratios as well as the average transverse momenta are compared with results at lower collision energies.
DOI: 10.17182/hepdata.68129.v1/t2
title: "Table 2" of "Measurement of pion, kaon and proton production in proton-proton collisions at $\sqrt{s}=7$ TeV"

description: Kaon/Pion ratio in pp collisions at SQRT(S) = 7 TeV.
description: CERN-LHC. The measurement of primary $\pi^{\pm}$, K$^{\pm}$, p and $\overline{p}$ production at mid-rapidity ($|y| &lt;$ 0.5) in proton-proton collisions at $\sqrt{s} = 7$ TeV performed with ALICE (A Large Ion Collider Experiment) at the Large Hadron Collider (LHC) is reported. Particle identification is performed using the specific ionization energy loss and time-of-flight information, the ring-imaging Cherenkov technique and the kink-topology identification of weak decays of charged kaons. Transverse momentum spectra are measured from 0.1 up to 3 GeV/$c$ for pions, from 0.2 up to 6 GeV/$c$ for kaons and from 0.3 up to 6 GeV/$c$ for protons. The measured spectra and particle ratios are compared with QCD-inspired models, tuned to reproduce also the earlier measurements performed at the LHC. Furthermore, the integrated particle yields and ratios as well as the average transverse momenta are compared with results at lower collision energies.
DOI: 10.17182/hepdata.68129.v1/t3
title: "Table 3" of "Measurement of pion, kaon and proton production in proton-proton collisions at $\sqrt{s}=7$ TeV"

description: Proton/Pion ratio in pp collisions at SQRT(S) = 7 TeV.
description: CERN-LHC. The measurement of primary $\pi^{\pm}$, K$^{\pm}$, p and $\overline{p}$ production at mid-rapidity ($|y| &lt;$ 0.5) in proton-proton collisions at $\sqrt{s} = 7$ TeV performed with ALICE (A Large Ion Collider Experiment) at the Large Hadron Collider (LHC) is reported. Particle identification is performed using the specific ionization energy loss and time-of-flight information, the ring-imaging Cherenkov technique and the kink-topology identification of weak decays of charged kaons. Transverse momentum spectra are measured from 0.1 up to 3 GeV/$c$ for pions, from 0.2 up to 6 GeV/$c$ for kaons and from 0.3 up to 6 GeV/$c$ for protons. The measured spectra and particle ratios are compared with QCD-inspired models, tuned to reproduce also the earlier measurements performed at the LHC. Furthermore, the integrated particle yields and ratios as well as the average transverse momenta are compared with results at lower collision energies.
DOI: 10.17182/hepdata.68129.v1/t4
title: "Table 4" of "Measurement of pion, kaon and proton production in proton-proton collisions at $\sqrt{s}=7$ TeV"

description: dN/dy and MEAN(PT) extracted from Levy-Tsallis fits to the measured PI, K, P spectra at mid-rapidity in inelastic pp collisions at SQRT(S) = 7 TeV. Combined statistical and systematic uncertainties (statistical uncertainties are negligible) are reported. The systematic uncertainty on dN/dy due to normalization to inelastic collisions (+7-4%) is not included. Integrated yields of Kaon/Pion and Proton/Pion ratios are also reported with combined statistical and systematic uncertainties (statistical uncertainties are negligible).
description: CERN-LHC. The measurement of primary $\pi^{\pm}$, K$^{\pm}$, p and $\overline{p}$ production at mid-rapidity ($|y| &lt;$ 0.5) in proton-proton collisions at $\sqrt{s} = 7$ TeV performed with ALICE (A Large Ion Collider Experiment) at the Large Hadron Collider (LHC) is reported. Particle identification is performed using the specific ionization energy loss and time-of-flight information, the ring-imaging Cherenkov technique and the kink-topology identification of weak decays of charged kaons. Transverse momentum spectra are measured from 0.1 up to 3 GeV/$c$ for pions, from 0.2 up to 6 GeV/$c$ for kaons and from 0.3 up to 6 GeV/$c$ for protons. The measured spectra and particle ratios are compared with QCD-inspired models, tuned to reproduce also the earlier measurements performed at the LHC. Furthermore, the integrated particle yields and ratios as well as the average transverse momenta are compared with results at lower collision energies.
DOI: 10.17182/hepdata.68129.v1/t5
title: "Table 5" of "Measurement of pion, kaon and proton production in proton-proton collisions at $\sqrt{s}=7$ TeV"

description: dN/dy and MEAN(PT) extracted from Levy-Tsallis fits to the measured PI, K, P spectra at mid-rapidity in inelastic pp collisions at SQRT(S) = 2.76 TeV. Combined statistical and systematic uncertainties (statistical uncertainties are negligible) are reported. The systematic uncertainty on dN/dy due to normalization to inelastic collisions (+6-4%) is not included. Integrated yields of Kaon/Pion and Proton/Pion ratios are also reported with combined statistical and systematic uncertainties (statistical uncertainties are negligible).
description: CERN-LHC. The measurement of primary $\pi^{\pm}$, K$^{\pm}$, p and $\overline{p}$ production at mid-rapidity ($|y| &lt;$ 0.5) in proton-proton collisions at $\sqrt{s} = 7$ TeV performed with ALICE (A Large Ion Collider Experiment) at the Large Hadron Collider (LHC) is reported. Particle identification is performed using the specific ionization energy loss and time-of-flight information, the ring-imaging Cherenkov technique and the kink-topology identification of weak decays of charged kaons. Transverse momentum spectra are measured from 0.1 up to 3 GeV/$c$ for pions, from 0.2 up to 6 GeV/$c$ for kaons and from 0.3 up to 6 GeV/$c$ for protons. The measured spectra and particle ratios are compared with QCD-inspired models, tuned to reproduce also the earlier measurements performed at the LHC. Furthermore, the integrated particle yields and ratios as well as the average transverse momenta are compared with results at lower collision energies.
DOI: 10.17182/hepdata.68152.v1/t1
title: "Table 1" of "Search for dark matter in events with a Z boson and missing transverse momentum in pp collisions at $\sqrt{s}$=8 TeV with the ATLAS detector"

description: Summary of the systematic uncertainties for the largest background process (ZZ-&gt;llnunu). Statistical uncertaintes are from MC simulation sample size.
description: Search for production of dark matter particles recoiling against a leptonically decaying Z boson in 20.3 fb-1 of pp collisions at sqrt(s)=8 TeV with the ATLAS detector at the Large Hadron Collider. Events with large missing transverse momentum and two oppositely-charged electrons or muons consistent with the decay of a Z boson are analyzed. 

The fiducial region is defined as:
- 2e+MET or 2mu+MET
- ptLepton &gt; 20 GeV
- |etaLepton| &lt; 2.5
- mll must be between 76 and 106 GeV
- |phi_METZ|&gt;2.5, where phi_METZ is the difference between the phi angles of the dilepton system and the MET.
- |MET - pTZ| / pTZ &lt; 0.5, where pTZ is the transverse momentum of the dilepton system.
- |etaZ|&lt;2.5, where etaZ is the pseudorapidity of the dilepton system.
- No events with a jet for which ptJet &gt; 25 GeV, |etaJet| &lt; 2.5, and the jet is not within DeltaR&lt;=0.2 of an electron.
- No events with a third lepton for which ptLepton &gt; 7 GeV
- min(DeltaR(l,l)) &gt; 0.2

- Four signal regions defined by their MET selection: MET&gt;150, MET&gt;250, MET&gt;350, MET&gt;450 GeV.
DOI: 10.17182/hepdata.68152.v1/t2
title: "Table 2" of "Search for dark matter in events with a Z boson and missing transverse momentum in pp collisions at $\sqrt{s}$=8 TeV with the ATLAS detector"

description: Observed yields and expected SM backgrounds in each signal region. Statistical, systematic, and luminosity uncertainteis are added in quadrature to give the total background estimate and uncertainties.
description: Search for production of dark matter particles recoiling against a leptonically decaying Z boson in 20.3 fb-1 of pp collisions at sqrt(s)=8 TeV with the ATLAS detector at the Large Hadron Collider. Events with large missing transverse momentum and two oppositely-charged electrons or muons consistent with the decay of a Z boson are analyzed. 

The fiducial region is defined as:
- 2e+MET or 2mu+MET
- ptLepton &gt; 20 GeV
- |etaLepton| &lt; 2.5
- mll must be between 76 and 106 GeV
- |phi_METZ|&gt;2.5, where phi_METZ is the difference between the phi angles of the dilepton system and the MET.
- |MET - pTZ| / pTZ &lt; 0.5, where pTZ is the transverse momentum of the dilepton system.
- |etaZ|&lt;2.5, where etaZ is the pseudorapidity of the dilepton system.
- No events with a jet for which ptJet &gt; 25 GeV, |etaJet| &lt; 2.5, and the jet is not within DeltaR&lt;=0.2 of an electron.
- No events with a third lepton for which ptLepton &gt; 7 GeV
- min(DeltaR(l,l)) &gt; 0.2

- Four signal regions defined by their MET selection: MET&gt;150, MET&gt;250, MET&gt;350, MET&gt;450 GeV.
DOI: 10.17182/hepdata.68152.v1/t3
title: "Table 3" of "Search for dark matter in events with a Z boson and missing transverse momentum in pp collisions at $\sqrt{s}$=8 TeV with the ATLAS detector"

description: The observed and expected upper limits on the fiducial cross section at 95% C.L. for each signal region.
description: Search for production of dark matter particles recoiling against a leptonically decaying Z boson in 20.3 fb-1 of pp collisions at sqrt(s)=8 TeV with the ATLAS detector at the Large Hadron Collider. Events with large missing transverse momentum and two oppositely-charged electrons or muons consistent with the decay of a Z boson are analyzed. 

The fiducial region is defined as:
- 2e+MET or 2mu+MET
- ptLepton &gt; 20 GeV
- |etaLepton| &lt; 2.5
- mll must be between 76 and 106 GeV
- |phi_METZ|&gt;2.5, where phi_METZ is the difference between the phi angles of the dilepton system and the MET.
- |MET - pTZ| / pTZ &lt; 0.5, where pTZ is the transverse momentum of the dilepton system.
- |etaZ|&lt;2.5, where etaZ is the pseudorapidity of the dilepton system.
- No events with a jet for which ptJet &gt; 25 GeV, |etaJet| &lt; 2.5, and the jet is not within DeltaR&lt;=0.2 of an electron.
- No events with a third lepton for which ptLepton &gt; 7 GeV
- min(DeltaR(l,l)) &gt; 0.2

- Four signal regions defined by their MET selection: MET&gt;150, MET&gt;250, MET&gt;350, MET&gt;450 GeV.
DOI: 10.17182/hepdata.68152.v1/t4
title: "Table 4" of "Search for dark matter in events with a Z boson and missing transverse momentum in pp collisions at $\sqrt{s}$=8 TeV with the ATLAS detector"

description: Observed 90% C.L. lower limits on the mass scale, M*, of considered effective field theories as a function of mChi. For each operator, the values below the corresponding line are excluded.
description: Search for production of dark matter particles recoiling against a leptonically decaying Z boson in 20.3 fb-1 of pp collisions at sqrt(s)=8 TeV with the ATLAS detector at the Large Hadron Collider. Events with large missing transverse momentum and two oppositely-charged electrons or muons consistent with the decay of a Z boson are analyzed. 

The fiducial region is defined as:
- 2e+MET or 2mu+MET
- ptLepton &gt; 20 GeV
- |etaLepton| &lt; 2.5
- mll must be between 76 and 106 GeV
- |phi_METZ|&gt;2.5, where phi_METZ is the difference between the phi angles of the dilepton system and the MET.
- |MET - pTZ| / pTZ &lt; 0.5, where pTZ is the transverse momentum of the dilepton system.
- |etaZ|&lt;2.5, where etaZ is the pseudorapidity of the dilepton system.
- No events with a jet for which ptJet &gt; 25 GeV, |etaJet| &lt; 2.5, and the jet is not within DeltaR&lt;=0.2 of an electron.
- No events with a third lepton for which ptLepton &gt; 7 GeV
- min(DeltaR(l,l)) &gt; 0.2

- Four signal regions defined by their MET selection: MET&gt;150, MET&gt;250, MET&gt;350, MET&gt;450 GeV.
DOI: 10.17182/hepdata.68152.v1/t5
title: "Table 5" of "Search for dark matter in events with a Z boson and missing transverse momentum in pp collisions at $\sqrt{s}$=8 TeV with the ATLAS detector"

description: Expected 95% C.L. upper limits on the cross section times branching fraction as a function of mChi. For each operator, the values above the corresponding line are excluded.
description: Search for production of dark matter particles recoiling against a leptonically decaying Z boson in 20.3 fb-1 of pp collisions at sqrt(s)=8 TeV with the ATLAS detector at the Large Hadron Collider. Events with large missing transverse momentum and two oppositely-charged electrons or muons consistent with the decay of a Z boson are analyzed. 

The fiducial region is defined as:
- 2e+MET or 2mu+MET
- ptLepton &gt; 20 GeV
- |etaLepton| &lt; 2.5
- mll must be between 76 and 106 GeV
- |phi_METZ|&gt;2.5, where phi_METZ is the difference between the phi angles of the dilepton system and the MET.
- |MET - pTZ| / pTZ &lt; 0.5, where pTZ is the transverse momentum of the dilepton system.
- |etaZ|&lt;2.5, where etaZ is the pseudorapidity of the dilepton system.
- No events with a jet for which ptJet &gt; 25 GeV, |etaJet| &lt; 2.5, and the jet is not within DeltaR&lt;=0.2 of an electron.
- No events with a third lepton for which ptLepton &gt; 7 GeV
- min(DeltaR(l,l)) &gt; 0.2

- Four signal regions defined by their MET selection: MET&gt;150, MET&gt;250, MET&gt;350, MET&gt;450 GeV.