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| CMS-PAS-HIG-25-015 | ||
| Measurements of inclusive and differential cross sections for Higgs boson production with decay to four leptons in proton-proton collisions at 13.6 TeV | ||
| CMS Collaboration | ||
| 2026-04-03 | ||
| Abstract: Measurements of Higgs boson (H) production cross sections in the four-lepton (4 $ \ell, \ell=\mathrm{e},\mu $) final state at a center-of-mass energy $ \sqrt{s}= $ 13.6 TeV are presented. These measurements are based on data collected with the CMS detector at the CERN LHC between 2022 and 2024, corresponding to an integrated luminosity of 171 fb$ ^{-1} $. Cross sections are measured in a fiducial region closely matching the experimental acceptance, both inclusively and differentially, as a function of a range of observables. Dedicated measurements targeting the production of the Higgs boson via vector boson fusion are also performed. The $ \mathrm{H}\to\mathrm{ZZ}\to 4\ell $ inclusive fiducial cross section is measured to be $ \sigma_\mathrm{fid} = $ 3.11 $ ^{+0.22}_{-0.22} $ ($ \mathrm{stat.} )^{+0.14}_{-0.12}( \mathrm{syst.} $) $ \mathrm{fb} $, in agreement with the standard model expectation of 3.05 $ ^{+0.17}_{-0.22} $ $ \mathrm{fb} $. | ||
| Links: CDS record (PDF) ; CADI line (restricted) ; | ||
| Figures | |
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Figure 1:
Distribution of the $ m_{4\ell} $ invariant mass in the ranges 70--200 GeV for the 2022--2024 data--taking period. The black points with error bars represent the data. The colored histograms show the signal (pink histogram) and the background contributions. |
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Figure 2:
Measured inclusive fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process for the different final states, for the scenario in which the Higgs boson branching ratios to 2 $ e2\mu $, 4 $ e $, and 4 $ \mu $ are fixed to the Standard Model values. The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
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Figure 3:
Likelihood scans of the expected and observed cross sections for the inclusive final state, where the Higgs boson branching ratios to 2 $ e2\mu $, 4 $ e $, and 4 $ \mu $ are fixed to the Standard Model values, and for the three individual final states (2 $ \mu 2e $, 4 $ \mu $, 4 $ e $), illustrating the impact of statistical and systematic uncertainties. |
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Figure 3-a:
Likelihood scans of the expected and observed cross sections for the inclusive final state, where the Higgs boson branching ratios to 2 $ e2\mu $, 4 $ e $, and 4 $ \mu $ are fixed to the Standard Model values, and for the three individual final states (2 $ \mu 2e $, 4 $ \mu $, 4 $ e $), illustrating the impact of statistical and systematic uncertainties. |
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Figure 3-b:
Likelihood scans of the expected and observed cross sections for the inclusive final state, where the Higgs boson branching ratios to 2 $ e2\mu $, 4 $ e $, and 4 $ \mu $ are fixed to the Standard Model values, and for the three individual final states (2 $ \mu 2e $, 4 $ \mu $, 4 $ e $), illustrating the impact of statistical and systematic uncertainties. |
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Figure 3-c:
Likelihood scans of the expected and observed cross sections for the inclusive final state, where the Higgs boson branching ratios to 2 $ e2\mu $, 4 $ e $, and 4 $ \mu $ are fixed to the Standard Model values, and for the three individual final states (2 $ \mu 2e $, 4 $ \mu $, 4 $ e $), illustrating the impact of statistical and systematic uncertainties. |
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Figure 3-d:
Likelihood scans of the expected and observed cross sections for the inclusive final state, where the Higgs boson branching ratios to 2 $ e2\mu $, 4 $ e $, and 4 $ \mu $ are fixed to the Standard Model values, and for the three individual final states (2 $ \mu 2e $, 4 $ \mu $, 4 $ e $), illustrating the impact of statistical and systematic uncertainties. |
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Figure 4:
Measured inclusive fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process for the different final states (left) and likelihood scan (right) of the expected and observed cross section for the inclusive final state, for the scenario in which the Higgs boson branching ratios to 2 $ e2\mu $, 4 $ e $, and 4 $ \mu $ are treated as free parameters in the fit. The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
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Figure 4-a:
Measured inclusive fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process for the different final states (left) and likelihood scan (right) of the expected and observed cross section for the inclusive final state, for the scenario in which the Higgs boson branching ratios to 2 $ e2\mu $, 4 $ e $, and 4 $ \mu $ are treated as free parameters in the fit. The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
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Figure 4-b:
Measured inclusive fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process for the different final states (left) and likelihood scan (right) of the expected and observed cross section for the inclusive final state, for the scenario in which the Higgs boson branching ratios to 2 $ e2\mu $, 4 $ e $, and 4 $ \mu $ are treated as free parameters in the fit. The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
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Figure 5:
Measured inclusive fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process for the different final states (left) and likelihood scan (right) of the expected and observed cross section for the inclusive final state, with the ZZ normalization treated as an unconstrained parameter. The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
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Figure 5-a:
Measured inclusive fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process for the different final states (left) and likelihood scan (right) of the expected and observed cross section for the inclusive final state, with the ZZ normalization treated as an unconstrained parameter. The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
png pdf |
Figure 5-b:
Measured inclusive fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process for the different final states (left) and likelihood scan (right) of the expected and observed cross section for the inclusive final state, with the ZZ normalization treated as an unconstrained parameter. The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
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Figure 6:
Observed differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function of the four-lepton transverse momentum $ p_{\mathrm{T}}^{4\ell} $ (left) and the four-lepton rapidity $ |y_{4\ell}| $ (right). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
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Figure 6-a:
Observed differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function of the four-lepton transverse momentum $ p_{\mathrm{T}}^{4\ell} $ (left) and the four-lepton rapidity $ |y_{4\ell}| $ (right). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
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Figure 6-b:
Observed differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function of the four-lepton transverse momentum $ p_{\mathrm{T}}^{4\ell} $ (left) and the four-lepton rapidity $ |y_{4\ell}| $ (right). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
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Figure 7:
Differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function of the number of jets $ N_{j} $ (top left), transverse momentum of the leading jet $ p_T^{j1} $ (top right), and the invariant mass of the dijet system $ p_T^{j2} $ (bottom). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
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Figure 7-a:
Differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function of the number of jets $ N_{j} $ (top left), transverse momentum of the leading jet $ p_T^{j1} $ (top right), and the invariant mass of the dijet system $ p_T^{j2} $ (bottom). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
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Figure 7-b:
Differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function of the number of jets $ N_{j} $ (top left), transverse momentum of the leading jet $ p_T^{j1} $ (top right), and the invariant mass of the dijet system $ p_T^{j2} $ (bottom). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
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Figure 7-c:
Differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function of the number of jets $ N_{j} $ (top left), transverse momentum of the leading jet $ p_T^{j1} $ (top right), and the invariant mass of the dijet system $ p_T^{j2} $ (bottom). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
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Figure 8:
Differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function of the invariant mass of the two leading jets $ m_{jj} $ (top left), the absolute pseudorapidity separation between the two leading jets $ |\Delta \eta_{jj}| $ (top right) and the azimuthal angle difference between the two leading jets $ \Delta \phi_{jj} $ (bottom). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
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Figure 8-a:
Differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function of the invariant mass of the two leading jets $ m_{jj} $ (top left), the absolute pseudorapidity separation between the two leading jets $ |\Delta \eta_{jj}| $ (top right) and the azimuthal angle difference between the two leading jets $ \Delta \phi_{jj} $ (bottom). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
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Figure 8-b:
Differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function of the invariant mass of the two leading jets $ m_{jj} $ (top left), the absolute pseudorapidity separation between the two leading jets $ |\Delta \eta_{jj}| $ (top right) and the azimuthal angle difference between the two leading jets $ \Delta \phi_{jj} $ (bottom). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
png pdf |
Figure 8-c:
Differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function of the invariant mass of the two leading jets $ m_{jj} $ (top left), the absolute pseudorapidity separation between the two leading jets $ |\Delta \eta_{jj}| $ (top right) and the azimuthal angle difference between the two leading jets $ \Delta \phi_{jj} $ (bottom). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
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Figure 9:
Differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function of the invariant mass of the $ \mathrm{H}+j $ system $ m_{\mathrm{H} j} $ (top left), where j is the leading jet in the event, the transverse momentum of the $ \mathrm{H}+j $ system $ p_{\mathrm{T}}^{\mathrm{H} j} $(top right) and the transverse momentum of the $ \mathrm{H}+jj $ system $ p_{\mathrm{T}}^{\mathrm{H} jj} $ (bottom). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
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Figure 9-a:
Differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function of the invariant mass of the $ \mathrm{H}+j $ system $ m_{\mathrm{H} j} $ (top left), where j is the leading jet in the event, the transverse momentum of the $ \mathrm{H}+j $ system $ p_{\mathrm{T}}^{\mathrm{H} j} $(top right) and the transverse momentum of the $ \mathrm{H}+jj $ system $ p_{\mathrm{T}}^{\mathrm{H} jj} $ (bottom). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
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Figure 9-b:
Differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function of the invariant mass of the $ \mathrm{H}+j $ system $ m_{\mathrm{H} j} $ (top left), where j is the leading jet in the event, the transverse momentum of the $ \mathrm{H}+j $ system $ p_{\mathrm{T}}^{\mathrm{H} j} $(top right) and the transverse momentum of the $ \mathrm{H}+jj $ system $ p_{\mathrm{T}}^{\mathrm{H} jj} $ (bottom). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
png pdf |
Figure 9-c:
Differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function of the invariant mass of the $ \mathrm{H}+j $ system $ m_{\mathrm{H} j} $ (top left), where j is the leading jet in the event, the transverse momentum of the $ \mathrm{H}+j $ system $ p_{\mathrm{T}}^{\mathrm{H} j} $(top right) and the transverse momentum of the $ \mathrm{H}+jj $ system $ p_{\mathrm{T}}^{\mathrm{H} jj} $ (bottom). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
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Figure 10:
Differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function of the rapidity-weighed jet-observables \texttt\(\mathcalT_B^\textmax\) (left) and \texttt\(\mathcalT_C^\textmax\) (right). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
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Figure 10-a:
Differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function of the rapidity-weighed jet-observables \texttt\(\mathcalT_B^\textmax\) (left) and \texttt\(\mathcalT_C^\textmax\) (right). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
png pdf |
Figure 10-b:
Differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function of the rapidity-weighed jet-observables \texttt\(\mathcalT_B^\textmax\) (left) and \texttt\(\mathcalT_C^\textmax\) (right). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
png pdf |
Figure 11:
Differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function the invariant mass of the leading $ Z $ candidate $ m_{Z_1} $ (left), and the invariant mass of the subleading $ Z $ candidate $ m_{Z_2} $ (right). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
png pdf |
Figure 11-a:
Differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function the invariant mass of the leading $ Z $ candidate $ m_{Z_1} $ (left), and the invariant mass of the subleading $ Z $ candidate $ m_{Z_2} $ (right). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
png pdf |
Figure 11-b:
Differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function the invariant mass of the leading $ Z $ candidate $ m_{Z_1} $ (left), and the invariant mass of the subleading $ Z $ candidate $ m_{Z_2} $ (right). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
png pdf |
Figure 12:
Differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function of the angular variables describing the Z boson decay, $ \Phi $ (top left) cos$ \theta_1 $ (top right) and cos$ \theta_2 $ (bottom). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
png pdf |
Figure 12-a:
Differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function of the angular variables describing the Z boson decay, $ \Phi $ (top left) cos$ \theta_1 $ (top right) and cos$ \theta_2 $ (bottom). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
png pdf |
Figure 12-b:
Differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function of the angular variables describing the Z boson decay, $ \Phi $ (top left) cos$ \theta_1 $ (top right) and cos$ \theta_2 $ (bottom). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
png pdf |
Figure 12-c:
Differential fiducial cross sections for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ process as a function of the angular variables describing the Z boson decay, $ \Phi $ (top left) cos$ \theta_1 $ (top right) and cos$ \theta_2 $ (bottom). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
png pdf |
Figure 13:
Differential fiducial cross sections for the $ H \rightarrow ZZ \rightarrow 4\ell $ process as a function of the angular variables connecting the production and decay processes, cos$ \theta^{\ast} $ (left) and $ \Phi_1 $(right). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
png pdf |
Figure 13-a:
Differential fiducial cross sections for the $ H \rightarrow ZZ \rightarrow 4\ell $ process as a function of the angular variables connecting the production and decay processes, cos$ \theta^{\ast} $ (left) and $ \Phi_1 $(right). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
png pdf |
Figure 13-b:
Differential fiducial cross sections for the $ H \rightarrow ZZ \rightarrow 4\ell $ process as a function of the angular variables connecting the production and decay processes, cos$ \theta^{\ast} $ (left) and $ \Phi_1 $(right). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
png pdf |
Figure 14:
Double differential cross sections in bins of $ |y_{\mathrm{H}}| $ vs. $ p_{\mathrm{T}}^{\mathrm{H}} $ (left) and $ {N_{j}} $ vs. $ p_{\mathrm{T}}^{\mathrm{H}} $ (right). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
png pdf |
Figure 14-a:
Double differential cross sections in bins of $ |y_{\mathrm{H}}| $ vs. $ p_{\mathrm{T}}^{\mathrm{H}} $ (left) and $ {N_{j}} $ vs. $ p_{\mathrm{T}}^{\mathrm{H}} $ (right). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
png pdf |
Figure 14-b:
Double differential cross sections in bins of $ |y_{\mathrm{H}}| $ vs. $ p_{\mathrm{T}}^{\mathrm{H}} $ (left) and $ {N_{j}} $ vs. $ p_{\mathrm{T}}^{\mathrm{H}} $ (right). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
png pdf |
Figure 15:
Double differential cross sections in bins of $ p_{\mathrm{T}}^{\mathrm{H} \text{j}} $ vs. $ p_{\mathrm{T}}^{\mathrm{H}} $ (upper left), $ p_{\mathrm{T}} $ of the leading vs. subleading jet (upper right) and $ m_{\mathrm{Z}_{1}} $ vs. $ m_{\mathrm{Z}_{2}} $ (bottom). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
png pdf |
Figure 15-a:
Double differential cross sections in bins of $ p_{\mathrm{T}}^{\mathrm{H} \text{j}} $ vs. $ p_{\mathrm{T}}^{\mathrm{H}} $ (upper left), $ p_{\mathrm{T}} $ of the leading vs. subleading jet (upper right) and $ m_{\mathrm{Z}_{1}} $ vs. $ m_{\mathrm{Z}_{2}} $ (bottom). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
png pdf |
Figure 15-b:
Double differential cross sections in bins of $ p_{\mathrm{T}}^{\mathrm{H} \text{j}} $ vs. $ p_{\mathrm{T}}^{\mathrm{H}} $ (upper left), $ p_{\mathrm{T}} $ of the leading vs. subleading jet (upper right) and $ m_{\mathrm{Z}_{1}} $ vs. $ m_{\mathrm{Z}_{2}} $ (bottom). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
png pdf |
Figure 15-c:
Double differential cross sections in bins of $ p_{\mathrm{T}}^{\mathrm{H} \text{j}} $ vs. $ p_{\mathrm{T}}^{\mathrm{H}} $ (upper left), $ p_{\mathrm{T}} $ of the leading vs. subleading jet (upper right) and $ m_{\mathrm{Z}_{1}} $ vs. $ m_{\mathrm{Z}_{2}} $ (bottom). The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
png pdf |
Figure 16:
Double differential cross sections in bins of $ |\Delta \eta_{jj}| $ vs. $ m_{jj} $. The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
png pdf |
Figure 17:
Double differential cross sections in bins of \texttt\(\mathcalT_C^\textmax\) vs. $ p_{\mathrm{T}}^{\mathrm{H}} $. The gg $ \to $ H predictions are shown for two different generators, POWHEG (blue) and NNLOPS (purple), normalized to the total cross section computed at next-to-next-to-next-to-leading order (N3LO), separately stacked over the the subdominant component of the signal from VBF + VH + t\=tH, denoted as xH (green). The hatched areas correspond to the systematic uncertainties in the theoretical predictions. Black points represent the measured fiducial cross sections in each bin, black error bars indicate the total uncertainty in each measurement, and red boxes denote the systematic uncertainties. The lower panels display the ratios of the measured cross sections and of the POWHEG gg $ \to $ H + xH theoretical prediction to the NNLOPS gg $ \to $ H + POWHEG xH theoretical predictions. |
| Tables | |
png pdf |
Table 1:
Summary of requirements used in the definition of the fiducial phase space for the $ \mathrm{H}\to4\ell $ cross section measurements. |
png pdf |
Table 2:
The differential cross sections measured in the analysis, including their descriptions and physics target (production or decay). |
png pdf |
Table 3:
Summary of relative systematic uncertainties considered in the analysis for 2022, 2023 and 2024. |
png pdf |
Table 4:
Post-fit yields for the four final states in the signal region (105 $ < m_{4\ell} < $ 160 GeV) are presented. The \textitnonfid contribution arises from signal events that do not originate within the fiducial volume but still satisfy the analysis selection criteria. The \textitnonres contribution corresponds to signal events from VH or t\=tH processes in which one of the leptons from the Higgs boson decay is either not reconstructed or fails the selection requirements (see Section 6 for details). The contributions from signal, \textitnonfid, and \textitnonres events are estimated assuming $ m_H = $ 125.38 GeV. |
png pdf |
Table 5:
Measured inclusive fiducial cross section and the corresponding uncertainties for different final states at $ m_{\mathrm{H}}= $ 125.38 GeV. |
| Summary |
| This paper presents a detailed characterization of the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ decay channel through measurements of fiducial differential cross sections as functions of several kinematic observables. The production of the H boson is studied via differential cross sections in bins of $ p_{\mathrm{T}}^\mathrm{H} $ and $ |y_\mathrm{H}| $, number of associated jets, the transverse momentum of the leading and subleading jets, and observables of the dijet system in events with associated jets. The evolution of the renormalization and factorization scales, as well as resummation effects, is probed by measuring cross sections in bins of the H plus jets system. Fiducial cross sections are measured in bins of the seven kinematic observables that fully describe the four-lepton decay: the invariant mass of the two Z bosons and the five angles that characterize the kinematics of the final-state fermions and the relative orientation of the production and decay planes. An extensive set of double-differential measurements provides a comprehensive coverage of the explored phase space. The inclusive fiducial cross section for $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ is $ \sigma_\mathrm{fid} = $ 3.11 $ ^{+0.23}_{-0.22} $ (stat) $^{+0.14}_{-0.11}$ (syst) fb, consistent with the standard model expectation of 3.05 $ ^{+0.17}_{-0.22} $ fb. All results are found to be in agreement with standard model predictions for the $ \mathrm{H}\to\mathrm{Z}\mathrm{Z}\to4\ell $ decay channel in the considered fiducial phase space. |
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