cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.75374.v1/t11
title: "Table 11" of "Event shapes and azimuthal correlations in Z + jets events in pp collisions at sqrt(s) =7 TeV"

description: Normalized DPhi(Z, j1) distributions for Njets &gt;= 3 and PT(Z) &gt;= 150 GeV.
description: CERN-LHC. Measurements of event shapes and azimuthal correlations are presented for events where a Z boson is produced in association with jets in proton-proton collisions. The data collected with the CMS detector at the CERN LHC at sqrt(s) = 7 TeV correspond to an integrated luminosity of 5.0 inverse femtobarns. The analysis provides a test of predictions from perturbative QCD for a process that represents a substantial background to many physics channels. Results are presented as a function of jet multiplicity, for inclusive Z boson production and for Z bosons with transverse momenta greater than 150 GeV, and compared to predictions from Monte Carlo event generators that include leading-order multiparton matrix-element (with up to four hard partons in the final state) and next-to-leading-order simulations of Z + 1-jet events. The experimental results are corrected for detector effects, and can be compared directly with other QCD models

For $Z/\gamma^{*}$ plus jets events we select:
- two same flavour opposite sign leptons with $p_{T} &gt; 20$ GeV and $|\eta| &lt; 2.4$ and $71 &lt; M_{\ell\ell} &lt; 111 $ GeV 
- leptons are "dressed" with all photons in a cone of radius $\Delta R = 0.1$
- at least one jet, jet selection $p_{T} &gt; 30$ GeV and $|\eta| &lt; 2.4$, we remove jets within a radius of $\Delta R &lt; 0.4$ with respect to the axes of each lepton
- for the ratio plots a cut on Z rapidity |y|&lt;1.4 is also applied

The event shape variable is defined as $\tau_{\perp}\equiv 1-\max_{\vec{n}_{T}}\frac{\sum_{i}\left|\vec{p}_{\perp,i}\cdot \vec{n}_{T} \right|}{\sum_{i}p_{\perp,i}}$.
DOI: 10.17182/hepdata.75374.v1/t12
title: "Table 12" of "Event shapes and azimuthal correlations in Z + jets events in pp collisions at sqrt(s) =7 TeV"

description: Normalized DPhi(Z, j2) distributions for Njets &gt;= 3 and PT(Z) &gt;= 150 GeV.
description: CERN-LHC. Measurements of event shapes and azimuthal correlations are presented for events where a Z boson is produced in association with jets in proton-proton collisions. The data collected with the CMS detector at the CERN LHC at sqrt(s) = 7 TeV correspond to an integrated luminosity of 5.0 inverse femtobarns. The analysis provides a test of predictions from perturbative QCD for a process that represents a substantial background to many physics channels. Results are presented as a function of jet multiplicity, for inclusive Z boson production and for Z bosons with transverse momenta greater than 150 GeV, and compared to predictions from Monte Carlo event generators that include leading-order multiparton matrix-element (with up to four hard partons in the final state) and next-to-leading-order simulations of Z + 1-jet events. The experimental results are corrected for detector effects, and can be compared directly with other QCD models

For $Z/\gamma^{*}$ plus jets events we select:
- two same flavour opposite sign leptons with $p_{T} &gt; 20$ GeV and $|\eta| &lt; 2.4$ and $71 &lt; M_{\ell\ell} &lt; 111 $ GeV 
- leptons are "dressed" with all photons in a cone of radius $\Delta R = 0.1$
- at least one jet, jet selection $p_{T} &gt; 30$ GeV and $|\eta| &lt; 2.4$, we remove jets within a radius of $\Delta R &lt; 0.4$ with respect to the axes of each lepton
- for the ratio plots a cut on Z rapidity |y|&lt;1.4 is also applied

The event shape variable is defined as $\tau_{\perp}\equiv 1-\max_{\vec{n}_{T}}\frac{\sum_{i}\left|\vec{p}_{\perp,i}\cdot \vec{n}_{T} \right|}{\sum_{i}p_{\perp,i}}$.
DOI: 10.17182/hepdata.75374.v1/t13
title: "Table 13" of "Event shapes and azimuthal correlations in Z + jets events in pp collisions at sqrt(s) =7 TeV"

description: Normalized DPhi(Z, j3) distributions for Njets &gt;= 3 and PT(Z) &gt;= 150 GeV.
description: CERN-LHC. Measurements of event shapes and azimuthal correlations are presented for events where a Z boson is produced in association with jets in proton-proton collisions. The data collected with the CMS detector at the CERN LHC at sqrt(s) = 7 TeV correspond to an integrated luminosity of 5.0 inverse femtobarns. The analysis provides a test of predictions from perturbative QCD for a process that represents a substantial background to many physics channels. Results are presented as a function of jet multiplicity, for inclusive Z boson production and for Z bosons with transverse momenta greater than 150 GeV, and compared to predictions from Monte Carlo event generators that include leading-order multiparton matrix-element (with up to four hard partons in the final state) and next-to-leading-order simulations of Z + 1-jet events. The experimental results are corrected for detector effects, and can be compared directly with other QCD models

For $Z/\gamma^{*}$ plus jets events we select:
- two same flavour opposite sign leptons with $p_{T} &gt; 20$ GeV and $|\eta| &lt; 2.4$ and $71 &lt; M_{\ell\ell} &lt; 111 $ GeV 
- leptons are "dressed" with all photons in a cone of radius $\Delta R = 0.1$
- at least one jet, jet selection $p_{T} &gt; 30$ GeV and $|\eta| &lt; 2.4$, we remove jets within a radius of $\Delta R &lt; 0.4$ with respect to the axes of each lepton
- for the ratio plots a cut on Z rapidity |y|&lt;1.4 is also applied

The event shape variable is defined as $\tau_{\perp}\equiv 1-\max_{\vec{n}_{T}}\frac{\sum_{i}\left|\vec{p}_{\perp,i}\cdot \vec{n}_{T} \right|}{\sum_{i}p_{\perp,i}}$.
DOI: 10.17182/hepdata.75374.v1/t8
title: "Table 8" of "Event shapes and azimuthal correlations in Z + jets events in pp collisions at sqrt(s) =7 TeV"

description: Normalized DPhi(j2, j3) distributions for Njets &gt;= 3.
description: CERN-LHC. Measurements of event shapes and azimuthal correlations are presented for events where a Z boson is produced in association with jets in proton-proton collisions. The data collected with the CMS detector at the CERN LHC at sqrt(s) = 7 TeV correspond to an integrated luminosity of 5.0 inverse femtobarns. The analysis provides a test of predictions from perturbative QCD for a process that represents a substantial background to many physics channels. Results are presented as a function of jet multiplicity, for inclusive Z boson production and for Z bosons with transverse momenta greater than 150 GeV, and compared to predictions from Monte Carlo event generators that include leading-order multiparton matrix-element (with up to four hard partons in the final state) and next-to-leading-order simulations of Z + 1-jet events. The experimental results are corrected for detector effects, and can be compared directly with other QCD models

For $Z/\gamma^{*}$ plus jets events we select:
- two same flavour opposite sign leptons with $p_{T} &gt; 20$ GeV and $|\eta| &lt; 2.4$ and $71 &lt; M_{\ell\ell} &lt; 111 $ GeV 
- leptons are "dressed" with all photons in a cone of radius $\Delta R = 0.1$
- at least one jet, jet selection $p_{T} &gt; 30$ GeV and $|\eta| &lt; 2.4$, we remove jets within a radius of $\Delta R &lt; 0.4$ with respect to the axes of each lepton
- for the ratio plots a cut on Z rapidity |y|&lt;1.4 is also applied

The event shape variable is defined as $\tau_{\perp}\equiv 1-\max_{\vec{n}_{T}}\frac{\sum_{i}\left|\vec{p}_{\perp,i}\cdot \vec{n}_{T} \right|}{\sum_{i}p_{\perp,i}}$.
DOI: 10.17182/hepdata.75374.v1/t9
title: "Table 9" of "Event shapes and azimuthal correlations in Z + jets events in pp collisions at sqrt(s) =7 TeV"

description: Normalized DPhi(Z, j1) distributions for Njets &gt;= 1 and PT(Z) &gt;= 150 GeV.
description: CERN-LHC. Measurements of event shapes and azimuthal correlations are presented for events where a Z boson is produced in association with jets in proton-proton collisions. The data collected with the CMS detector at the CERN LHC at sqrt(s) = 7 TeV correspond to an integrated luminosity of 5.0 inverse femtobarns. The analysis provides a test of predictions from perturbative QCD for a process that represents a substantial background to many physics channels. Results are presented as a function of jet multiplicity, for inclusive Z boson production and for Z bosons with transverse momenta greater than 150 GeV, and compared to predictions from Monte Carlo event generators that include leading-order multiparton matrix-element (with up to four hard partons in the final state) and next-to-leading-order simulations of Z + 1-jet events. The experimental results are corrected for detector effects, and can be compared directly with other QCD models

For $Z/\gamma^{*}$ plus jets events we select:
- two same flavour opposite sign leptons with $p_{T} &gt; 20$ GeV and $|\eta| &lt; 2.4$ and $71 &lt; M_{\ell\ell} &lt; 111 $ GeV 
- leptons are "dressed" with all photons in a cone of radius $\Delta R = 0.1$
- at least one jet, jet selection $p_{T} &gt; 30$ GeV and $|\eta| &lt; 2.4$, we remove jets within a radius of $\Delta R &lt; 0.4$ with respect to the axes of each lepton
- for the ratio plots a cut on Z rapidity |y|&lt;1.4 is also applied

The event shape variable is defined as $\tau_{\perp}\equiv 1-\max_{\vec{n}_{T}}\frac{\sum_{i}\left|\vec{p}_{\perp,i}\cdot \vec{n}_{T} \right|}{\sum_{i}p_{\perp,i}}$.
DOI: 10.17182/hepdata.75374.v1/t14
title: "Table 14" of "Event shapes and azimuthal correlations in Z + jets events in pp collisions at sqrt(s) =7 TeV"

description: Normalized DPhi(j1, j2) distributions for Njets &gt;= 3 and PT(Z) &gt;= 150 GeV.
description: CERN-LHC. Measurements of event shapes and azimuthal correlations are presented for events where a Z boson is produced in association with jets in proton-proton collisions. The data collected with the CMS detector at the CERN LHC at sqrt(s) = 7 TeV correspond to an integrated luminosity of 5.0 inverse femtobarns. The analysis provides a test of predictions from perturbative QCD for a process that represents a substantial background to many physics channels. Results are presented as a function of jet multiplicity, for inclusive Z boson production and for Z bosons with transverse momenta greater than 150 GeV, and compared to predictions from Monte Carlo event generators that include leading-order multiparton matrix-element (with up to four hard partons in the final state) and next-to-leading-order simulations of Z + 1-jet events. The experimental results are corrected for detector effects, and can be compared directly with other QCD models

For $Z/\gamma^{*}$ plus jets events we select:
- two same flavour opposite sign leptons with $p_{T} &gt; 20$ GeV and $|\eta| &lt; 2.4$ and $71 &lt; M_{\ell\ell} &lt; 111 $ GeV 
- leptons are "dressed" with all photons in a cone of radius $\Delta R = 0.1$
- at least one jet, jet selection $p_{T} &gt; 30$ GeV and $|\eta| &lt; 2.4$, we remove jets within a radius of $\Delta R &lt; 0.4$ with respect to the axes of each lepton
- for the ratio plots a cut on Z rapidity |y|&lt;1.4 is also applied

The event shape variable is defined as $\tau_{\perp}\equiv 1-\max_{\vec{n}_{T}}\frac{\sum_{i}\left|\vec{p}_{\perp,i}\cdot \vec{n}_{T} \right|}{\sum_{i}p_{\perp,i}}$.
DOI: 10.17182/hepdata.75374.v1/t15
title: "Table 15" of "Event shapes and azimuthal correlations in Z + jets events in pp collisions at sqrt(s) =7 TeV"

description: Normalized DPhi(j1, j3) distributions for Njets &gt;= 3 and PT(Z) &gt;= 150 GeV.
description: CERN-LHC. Measurements of event shapes and azimuthal correlations are presented for events where a Z boson is produced in association with jets in proton-proton collisions. The data collected with the CMS detector at the CERN LHC at sqrt(s) = 7 TeV correspond to an integrated luminosity of 5.0 inverse femtobarns. The analysis provides a test of predictions from perturbative QCD for a process that represents a substantial background to many physics channels. Results are presented as a function of jet multiplicity, for inclusive Z boson production and for Z bosons with transverse momenta greater than 150 GeV, and compared to predictions from Monte Carlo event generators that include leading-order multiparton matrix-element (with up to four hard partons in the final state) and next-to-leading-order simulations of Z + 1-jet events. The experimental results are corrected for detector effects, and can be compared directly with other QCD models

For $Z/\gamma^{*}$ plus jets events we select:
- two same flavour opposite sign leptons with $p_{T} &gt; 20$ GeV and $|\eta| &lt; 2.4$ and $71 &lt; M_{\ell\ell} &lt; 111 $ GeV 
- leptons are "dressed" with all photons in a cone of radius $\Delta R = 0.1$
- at least one jet, jet selection $p_{T} &gt; 30$ GeV and $|\eta| &lt; 2.4$, we remove jets within a radius of $\Delta R &lt; 0.4$ with respect to the axes of each lepton
- for the ratio plots a cut on Z rapidity |y|&lt;1.4 is also applied

The event shape variable is defined as $\tau_{\perp}\equiv 1-\max_{\vec{n}_{T}}\frac{\sum_{i}\left|\vec{p}_{\perp,i}\cdot \vec{n}_{T} \right|}{\sum_{i}p_{\perp,i}}$.
DOI: 10.17182/hepdata.75374.v1/t16
title: "Table 16" of "Event shapes and azimuthal correlations in Z + jets events in pp collisions at sqrt(s) =7 TeV"

description: Normalized DPhi(j2, j3) distributions for Njets &gt;= 3 and PT(Z) &gt;= 150 GeV.
description: CERN-LHC. Measurements of event shapes and azimuthal correlations are presented for events where a Z boson is produced in association with jets in proton-proton collisions. The data collected with the CMS detector at the CERN LHC at sqrt(s) = 7 TeV correspond to an integrated luminosity of 5.0 inverse femtobarns. The analysis provides a test of predictions from perturbative QCD for a process that represents a substantial background to many physics channels. Results are presented as a function of jet multiplicity, for inclusive Z boson production and for Z bosons with transverse momenta greater than 150 GeV, and compared to predictions from Monte Carlo event generators that include leading-order multiparton matrix-element (with up to four hard partons in the final state) and next-to-leading-order simulations of Z + 1-jet events. The experimental results are corrected for detector effects, and can be compared directly with other QCD models

For $Z/\gamma^{*}$ plus jets events we select:
- two same flavour opposite sign leptons with $p_{T} &gt; 20$ GeV and $|\eta| &lt; 2.4$ and $71 &lt; M_{\ell\ell} &lt; 111 $ GeV 
- leptons are "dressed" with all photons in a cone of radius $\Delta R = 0.1$
- at least one jet, jet selection $p_{T} &gt; 30$ GeV and $|\eta| &lt; 2.4$, we remove jets within a radius of $\Delta R &lt; 0.4$ with respect to the axes of each lepton
- for the ratio plots a cut on Z rapidity |y|&lt;1.4 is also applied

The event shape variable is defined as $\tau_{\perp}\equiv 1-\max_{\vec{n}_{T}}\frac{\sum_{i}\left|\vec{p}_{\perp,i}\cdot \vec{n}_{T} \right|}{\sum_{i}p_{\perp,i}}$.
DOI: 10.17182/hepdata.75374.v1/t17
title: "Table 17" of "Event shapes and azimuthal correlations in Z + jets events in pp collisions at sqrt(s) =7 TeV"

description: Normalized distributions in ln(tauT) for all PT(Z) and Njets &gt;=1.
description: CERN-LHC. Measurements of event shapes and azimuthal correlations are presented for events where a Z boson is produced in association with jets in proton-proton collisions. The data collected with the CMS detector at the CERN LHC at sqrt(s) = 7 TeV correspond to an integrated luminosity of 5.0 inverse femtobarns. The analysis provides a test of predictions from perturbative QCD for a process that represents a substantial background to many physics channels. Results are presented as a function of jet multiplicity, for inclusive Z boson production and for Z bosons with transverse momenta greater than 150 GeV, and compared to predictions from Monte Carlo event generators that include leading-order multiparton matrix-element (with up to four hard partons in the final state) and next-to-leading-order simulations of Z + 1-jet events. The experimental results are corrected for detector effects, and can be compared directly with other QCD models

For $Z/\gamma^{*}$ plus jets events we select:
- two same flavour opposite sign leptons with $p_{T} &gt; 20$ GeV and $|\eta| &lt; 2.4$ and $71 &lt; M_{\ell\ell} &lt; 111 $ GeV 
- leptons are "dressed" with all photons in a cone of radius $\Delta R = 0.1$
- at least one jet, jet selection $p_{T} &gt; 30$ GeV and $|\eta| &lt; 2.4$, we remove jets within a radius of $\Delta R &lt; 0.4$ with respect to the axes of each lepton
- for the ratio plots a cut on Z rapidity |y|&lt;1.4 is also applied

The event shape variable is defined as $\tau_{\perp}\equiv 1-\max_{\vec{n}_{T}}\frac{\sum_{i}\left|\vec{p}_{\perp,i}\cdot \vec{n}_{T} \right|}{\sum_{i}p_{\perp,i}}$.
DOI: 10.17182/hepdata.75374.v1/t18
title: "Table 18" of "Event shapes and azimuthal correlations in Z + jets events in pp collisions at sqrt(s) =7 TeV"

description: Normalized distributions in ln(tauT) for PT(Z) &gt; 150 GeV and Njets &gt;=1.
description: CERN-LHC. Measurements of event shapes and azimuthal correlations are presented for events where a Z boson is produced in association with jets in proton-proton collisions. The data collected with the CMS detector at the CERN LHC at sqrt(s) = 7 TeV correspond to an integrated luminosity of 5.0 inverse femtobarns. The analysis provides a test of predictions from perturbative QCD for a process that represents a substantial background to many physics channels. Results are presented as a function of jet multiplicity, for inclusive Z boson production and for Z bosons with transverse momenta greater than 150 GeV, and compared to predictions from Monte Carlo event generators that include leading-order multiparton matrix-element (with up to four hard partons in the final state) and next-to-leading-order simulations of Z + 1-jet events. The experimental results are corrected for detector effects, and can be compared directly with other QCD models

For $Z/\gamma^{*}$ plus jets events we select:
- two same flavour opposite sign leptons with $p_{T} &gt; 20$ GeV and $|\eta| &lt; 2.4$ and $71 &lt; M_{\ell\ell} &lt; 111 $ GeV 
- leptons are "dressed" with all photons in a cone of radius $\Delta R = 0.1$
- at least one jet, jet selection $p_{T} &gt; 30$ GeV and $|\eta| &lt; 2.4$, we remove jets within a radius of $\Delta R &lt; 0.4$ with respect to the axes of each lepton
- for the ratio plots a cut on Z rapidity |y|&lt;1.4 is also applied

The event shape variable is defined as $\tau_{\perp}\equiv 1-\max_{\vec{n}_{T}}\frac{\sum_{i}\left|\vec{p}_{\perp,i}\cdot \vec{n}_{T} \right|}{\sum_{i}p_{\perp,i}}$.
DOI: 10.17182/hepdata.75375.v1/t1
title: "Table 1" of "Studies of inclusive four-jet production with two b-tagged jets in proton-proton collisions at 7 TeV"

description: The measured fiducial cross section. The first uncertainty is the statistical one, the second uncertainty is the combined systematic uncertainty including luminosity, jet energy scale, sample purity, model dependence and jet energy resolution and trigger efficiency correction.
description: CERN-LHC. Measurements are presented of the cross section for the production of at least four jets, of which at least two originate from b quarks, in proton-proton collisions. Data collected with the CMS detector at the LHC at a center-of-mass energy of 7 TeV are used, corresponding to an integrated luminosity of 3 pb inverse. The cross section is measured as a function of the jet transverse momentum for pT &gt; 20 GeV, and of the jet pseudorapidity for |eta| &lt; 2.4 (b jets), 4.7 (untagged jets). The correlations in azimuthal angle and pT between the jets are also studied. The inclusive cross section is measured to be sigma(pp -&gt; 2 b + 2 j + X) = 69 +- 3 (stat) +- 24 (syst) nb. The eta and pT distributions of the four jets and the correlations between them are well reproduced by event generators that combine perturbative QCD calculations at next-to-leading-order accuracy with contributions from parton showers and multiparton interactions.

The four-jet fiducial region is defined as:
- at least four jets in the final state in |eta|&lt;4.7 and with pT &gt; 20 GeV.
- Two jets are required to contain a bottom quark at a smaller distance than 0.3 in DeltaR.
DOI: 10.17182/hepdata.75375.v1/t2
title: "Table 2" of "Studies of inclusive four-jet production with two b-tagged jets in proton-proton collisions at 7 TeV"

description: Differential cross section as a function of the transverse momentum PT of the leading b-jet. The first uncertainty is the statistical one, the second uncertainty is the combined systematic uncertainty including luminosity, jet energy scale, sample purity, model dependence and jet energy resolution and trigger efficiency correction.
description: CERN-LHC. Measurements are presented of the cross section for the production of at least four jets, of which at least two originate from b quarks, in proton-proton collisions. Data collected with the CMS detector at the LHC at a center-of-mass energy of 7 TeV are used, corresponding to an integrated luminosity of 3 pb inverse. The cross section is measured as a function of the jet transverse momentum for pT &gt; 20 GeV, and of the jet pseudorapidity for |eta| &lt; 2.4 (b jets), 4.7 (untagged jets). The correlations in azimuthal angle and pT between the jets are also studied. The inclusive cross section is measured to be sigma(pp -&gt; 2 b + 2 j + X) = 69 +- 3 (stat) +- 24 (syst) nb. The eta and pT distributions of the four jets and the correlations between them are well reproduced by event generators that combine perturbative QCD calculations at next-to-leading-order accuracy with contributions from parton showers and multiparton interactions.

The four-jet fiducial region is defined as:
- at least four jets in the final state in |eta|&lt;4.7 and with pT &gt; 20 GeV.
- Two jets are required to contain a bottom quark at a smaller distance than 0.3 in DeltaR.
DOI: 10.17182/hepdata.75375.v1/t3
title: "Table 3" of "Studies of inclusive four-jet production with two b-tagged jets in proton-proton collisions at 7 TeV"

description: Differential cross section as a function of the transverse momentum PT of the subleading b-jet. The first uncertainty is the statistical one, the second uncertainty is the combined systematic uncertainty including luminosity, jet energy scale, sample purity, model dependence and jet energy resolution and trigger efficiency correction.
description: CERN-LHC. Measurements are presented of the cross section for the production of at least four jets, of which at least two originate from b quarks, in proton-proton collisions. Data collected with the CMS detector at the LHC at a center-of-mass energy of 7 TeV are used, corresponding to an integrated luminosity of 3 pb inverse. The cross section is measured as a function of the jet transverse momentum for pT &gt; 20 GeV, and of the jet pseudorapidity for |eta| &lt; 2.4 (b jets), 4.7 (untagged jets). The correlations in azimuthal angle and pT between the jets are also studied. The inclusive cross section is measured to be sigma(pp -&gt; 2 b + 2 j + X) = 69 +- 3 (stat) +- 24 (syst) nb. The eta and pT distributions of the four jets and the correlations between them are well reproduced by event generators that combine perturbative QCD calculations at next-to-leading-order accuracy with contributions from parton showers and multiparton interactions.

The four-jet fiducial region is defined as:
- at least four jets in the final state in |eta|&lt;4.7 and with pT &gt; 20 GeV.
- Two jets are required to contain a bottom quark at a smaller distance than 0.3 in DeltaR.