cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.17182/hepdata.137769.v2/t28
title: "Aux Figure 04c-2" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: Distributions of the reconstructed m<sub>HH</sub> in data (shown by the black points) and the estimated background (shown by the yellow histograms), in each of the six |Δη<sub>HH</sub>|/X<sub>HH</sub> categories in the ggF signal region, for the 2018 data. 
The hatching shows the total uncertainty on the background estimate. 
The distribution of the expected background is obtained using the best-fit values of the nuisance parameters in the background-only fit to the data.
Distributions of the SM and κ<sub>λ</sub>= 6 signal models are overlaid, scaled so as to be visible on the plot, and the scaling for each signal model is the same across the six categories.
The lower panels show the ratio of the observed data yield to the predicted background in each bin.
Events in the underflow and overflow bins are counted in the yields of the initial and final bins respectively.
In the HEPData entry, the raw value per histogram bin is provided, while in the published paper the values in the histogram are scaled by the bin width.
description: No data abstract available.
DOI: 10.17182/hepdata.137769.v2/t29
title: "Aux Figure 04c-3" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: Distributions of the reconstructed m<sub>HH</sub> in data (shown by the black points) and the estimated background (shown by the yellow histograms), in each of the six |Δη<sub>HH</sub>|/X<sub>HH</sub> categories in the ggF signal region, for the 2018 data. 
The hatching shows the total uncertainty on the background estimate. 
The distribution of the expected background is obtained using the best-fit values of the nuisance parameters in the background-only fit to the data.
Distributions of the SM and κ<sub>λ</sub>= 6 signal models are overlaid, scaled so as to be visible on the plot, and the scaling for each signal model is the same across the six categories.
The lower panels show the ratio of the observed data yield to the predicted background in each bin.
Events in the underflow and overflow bins are counted in the yields of the initial and final bins respectively.
In the HEPData entry, the raw value per histogram bin is provided, while in the published paper the values in the histogram are scaled by the bin width.
description: No data abstract available.
DOI: 10.17182/hepdata.137769.v2/t30
title: "Aux Figure 04c-4" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: Distributions of the reconstructed m<sub>HH</sub> in data (shown by the black points) and the estimated background (shown by the yellow histograms), in each of the six |Δη<sub>HH</sub>|/X<sub>HH</sub> categories in the ggF signal region, for the 2018 data. 
The hatching shows the total uncertainty on the background estimate. 
The distribution of the expected background is obtained using the best-fit values of the nuisance parameters in the background-only fit to the data.
Distributions of the SM and κ<sub>λ</sub>= 6 signal models are overlaid, scaled so as to be visible on the plot, and the scaling for each signal model is the same across the six categories.
The lower panels show the ratio of the observed data yield to the predicted background in each bin.
Events in the underflow and overflow bins are counted in the yields of the initial and final bins respectively.
In the HEPData entry, the raw value per histogram bin is provided, while in the published paper the values in the histogram are scaled by the bin width.
description: No data abstract available.
DOI: 10.17182/hepdata.137769.v2/t31
title: "Aux Figure 04c-5" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: Distributions of the reconstructed m<sub>HH</sub> in data (shown by the black points) and the estimated background (shown by the yellow histograms), in each of the six |Δη<sub>HH</sub>|/X<sub>HH</sub> categories in the ggF signal region, for the 2018 data. 
The hatching shows the total uncertainty on the background estimate. 
The distribution of the expected background is obtained using the best-fit values of the nuisance parameters in the background-only fit to the data.
Distributions of the SM and κ<sub>λ</sub>= 6 signal models are overlaid, scaled so as to be visible on the plot, and the scaling for each signal model is the same across the six categories.
The lower panels show the ratio of the observed data yield to the predicted background in each bin.
Events in the underflow and overflow bins are counted in the yields of the initial and final bins respectively.
In the HEPData entry, the raw value per histogram bin is provided, while in the published paper the values in the histogram are scaled by the bin width.
description: No data abstract available.
DOI: 10.17182/hepdata.137769.v2/t32
title: "Aux Figure 08a" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: The observed 95% CL exclusion limits as a function of the five relevant SMEFT coefficients: (a) c<sub>H</sub>, (b) c<sub>H G</sub>, (c) c<sub>H□</sub>, (d) c<sub>tH</sub>, and (e) c<sub>tG</sub>, obtained from the combined ggF signal model, as shown by the solid black line.
The values of the other four coefficients are fixed to 0.
The blue and yellow bands show the 1σ and 2σ bands respectively on the expected exclusion limits, which are shown by the dashed black line.
The red line shows the predicted ggF HH cross-section as a function of the coefficient.
The VBF HH process is ignored for this result.
description: No data abstract available.
DOI: 10.17182/hepdata.137769.v2/t33
title: "Aux Figure 08b" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: The observed 95% CL exclusion limits as a function of the five relevant SMEFT coefficients: (a) c<sub>H</sub>, (b) c<sub>H G</sub>, (c) c<sub>H□</sub>, (d) c<sub>tH</sub>, and (e) c<sub>tG</sub>, obtained from the combined ggF signal model, as shown by the solid black line.
The values of the other four coefficients are fixed to 0.
The blue and yellow bands show the 1σ and 2σ bands respectively on the expected exclusion limits, which are shown by the dashed black line.
The red line shows the predicted ggF HH cross-section as a function of the coefficient.
The VBF HH process is ignored for this result.
description: No data abstract available.
DOI: 10.17182/hepdata.137769.v2/t34
title: "Aux Figure 08c" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: The observed 95% CL exclusion limits as a function of the five relevant SMEFT coefficients: (a) c<sub>H</sub>, (b) c<sub>H G</sub>, (c) c<sub>H□</sub>, (d) c<sub>tH</sub>, and (e) c<sub>tG</sub>, obtained from the combined ggF signal model, as shown by the solid black line.
The values of the other four coefficients are fixed to 0.
The blue and yellow bands show the 1σ and 2σ bands respectively on the expected exclusion limits, which are shown by the dashed black line.
The red line shows the predicted ggF HH cross-section as a function of the coefficient.
The VBF HH process is ignored for this result.
description: No data abstract available.
DOI: 10.17182/hepdata.137769.v2/t35
title: "Aux Figure 08d" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: The observed 95% CL exclusion limits as a function of the five relevant SMEFT coefficients: (a) c<sub>H</sub>, (b) c<sub>H G</sub>, (c) c<sub>H□</sub>, (d) c<sub>tH</sub>, and (e) c<sub>tG</sub>, obtained from the combined ggF signal model, as shown by the solid black line.
The values of the other four coefficients are fixed to 0.
The blue and yellow bands show the 1σ and 2σ bands respectively on the expected exclusion limits, which are shown by the dashed black line.
The red line shows the predicted ggF HH cross-section as a function of the coefficient.
The VBF HH process is ignored for this result.
description: No data abstract available.
DOI: 10.17182/hepdata.137769.v2/t36
title: "Aux Figure 08e" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: The observed 95% CL exclusion limits as a function of the five relevant SMEFT coefficients: (a) c<sub>H</sub>, (b) c<sub>H G</sub>, (c) c<sub>H□</sub>, (d) c<sub>tH</sub>, and (e) c<sub>tG</sub>, obtained from the combined ggF signal model, as shown by the solid black line.
The values of the other four coefficients are fixed to 0.
The blue and yellow bands show the 1σ and 2σ bands respectively on the expected exclusion limits, which are shown by the dashed black line.
The red line shows the predicted ggF HH cross-section as a function of the coefficient.
The VBF HH process is ignored for this result.
description: No data abstract available.
DOI: 10.17182/hepdata.137769.v2/t37
title: "Aux Figure 09a" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: The observed 95% CL exclusion limits as a function of the two relevant HH HEFT coefficients: (a) c<sub>tt̄HH</sub> and (b) c<sub>ggHH</sub>, obtained from the combined ggF signal model, as shown by the solid black line.
The values of the other four coefficients are fixed to 0.
The blue and yellow bands show the 1σ and 2σ bands respectively on the expected exclusion limits, which are shown by the dashed black line.
The red line shows the predicted ggF HH cross-section as a function of the coefficient.
The VBF HH process is ignored for this result.
description: No data abstract available.
DOI: 10.17182/hepdata.137769.v2/t38
title: "Aux Figure 09b" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: The observed 95% CL exclusion limits as a function of the two relevant HH HEFT coefficients: (a) c<sub>tt̄HH</sub> and (b) c<sub>ggHH</sub>, obtained from the combined ggF signal model, as shown by the solid black line.
The values of the other four coefficients are fixed to 0.
The blue and yellow bands show the 1σ and 2σ bands respectively on the expected exclusion limits, which are shown by the dashed black line.
The red line shows the predicted ggF HH cross-section as a function of the coefficient.
The VBF HH process is ignored for this result.
description: No data abstract available.
DOI: 10.17182/hepdata.137769.v1/t1
title: "Figure 9a" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: Distributions of the reconstructed m<sub>HH</sub> in data (shown by the black points), the estimated background (shown by the yellow histograms) in the VBF signal region with |Δη<sub>HH</sub>| &lt; 1.5.
The hatching shows the total uncertainty of the background estimate. 
The distribution of the expected background is obtained using the best-fit values of the nuisance parameters in the fit to the data with the background-only hypothesis.
Distributions for three choices of couplings are shown: the SM, κ<sub>λ</sub>= 6, and κ<sub>2V</sub> = 0 (with all other couplings set to their SM values in the last two models), scaled so as to be visible on the plot. 
The lower panels show the ratio of the observed data yield to the predicted background in each bin.
Events in the overflow bins are counted in the yields of the final bins.
In the HEPData entry, the raw value per histogram bin is provided, while in the published paper the values in the histogram are scaled by the bin width.
description: No data abstract available.
DOI: 10.17182/hepdata.137769.v1/t2
title: "Figure 9b" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: Distributions of the reconstructed m<sub>HH</sub> in data (shown by the black points), the estimated background (shown by the yellow histograms) in the VBF signal region with |Δη<sub>HH</sub>| &gt; 1.5.
The hatching shows the total uncertainty of the background estimate. 
The distribution of the expected background is obtained using the best-fit values of the nuisance parameters in the fit to the data with the background-only hypothesis.
Distributions for three choices of couplings are shown: the SM, κ<sub>λ</sub>= 6, and κ<sub>2V</sub> = 0 (with all other couplings set to their SM values in the last two models), scaled so as to be visible on the plot. 
The lower panels show the ratio of the observed data yield to the predicted background in each bin.
Events in the overflow bins are counted in the yields of the final bins.
In the HEPData entry, the raw value per histogram bin is provided, while in the published paper the values in the histogram are scaled by the bin width.
description: No data abstract available.
DOI: 10.17182/hepdata.137769.v1/t3
title: "Figure 10a" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: The observed 95% CL exclusion limits as a function of κ<sub>λ</sub> (obtained using the signal strength μ<sub>ggF+VBF</sub> as the POI) from the combined ggF and VBF signal regions, as shown by the solid black line.
The value of κ<sub>2V</sub> is fixed to 1.
The blue and yellow bands show respectively the 1σ and 2σ bands around the expected exclusion limits, which are shown by the dashed black line.
The expected exclusion limits are obtained using a fit to the data with the background-only hypothesis.
The dark red line shows the predicted combined ggF and VBF HH cross-section as a function of κ<sub>λ</sub>.
description: No data abstract available.
DOI: 10.17182/hepdata.137769.v1/t4
title: "Figure 10b" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: The observed 95% CL exclusion limits as a function of κ<sub>2V</sub> (obtained using the signal strength μ<sub>VBF</sub> as the POI) from the combined ggF and VBF signal regions, as shown by the solid black line.
The value of κ<sub>λ</sub> is fixed to 1.
The blue and yellow bands show respectively the 1σ and 2σ bands around the expected exclusion limits, which are shown by the dashed black line.
The expected exclusion limits are obtained using a fit to the data with the background-only hypothesis.
The dark red line shows in the predicted VBF HH cross-section as a function of κ<sub>2V</sub>.
description: No data abstract available.
DOI: 10.17182/hepdata.137769.v1/t5
title: "Figure 11" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: The observed 95% CL exclusion limit obtained using the signal strength μ<sub>ggF+VBF</sub> as the POI in the two-dimensional κ<sub>λ</sub> vs. κ<sub>2V</sub> space, obtained from the combined ggF and VBF signal model, as shown by the solid black line.
The blue and yellow bands show respectively the 1σ and 2σ bands around the expected exclusion limits, which are shown by the dashed black line.
The star denotes the SM prediction (κ<sub>λ</sub>=κ<sub>2V</sub>=1). 
The displayed values are in units of $\mu_{ggF}$.
description: No data abstract available.
DOI: 10.17182/hepdata.137769.v1/t6
title: "Figure 12a" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: The expected and observed profile likelihood ratio scans for κ<sub>λ</sub> coupling modifier, shown by the solid black line, using the coupling modifier as the POIs.
The value of κ<sub>2V</sub> is fixed to 1.
The dashed blue line shows the expected profile likelihood ratio, as obtained using a fit to the data with the background-only hypothesis.
The pink line indicates the 2σ exclusion boundary.
description: No data abstract available.
DOI: 10.17182/hepdata.137769.v1/t10
title: "Figure 14a" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: The observed 95% CL exclusion limits on the SMEFT coefficients in the two-dimensional spaces c<sub>H G</sub> vs. c<sub>H</sub> shown by the solid black lines. The displayed values are in units of $\mu_{ggF}$.
The dashed black line indicates the expected 95% CL exclusion limits.
The shaded blue band indicates the ± 1σ uncertainty of the exclusion limits, while the yellow band indicates the ± 2σ uncertainty.
The values of the other three coefficients for each plot are fixed to 0. 
The VBF HH process is ignored for this result.
description: No data abstract available.
DOI: 10.17182/hepdata.137769.v1/t11
title: "Figure 14b" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: The observed 95% CL exclusion limits on the SMEFT coefficients in the two-dimensional spaces c<sub>tG</sub> vs. c<sub>H</sub> shown by the solid black lines. The displayed values are in units of $\mu_{ggF}$.
The dashed black line indicates the expected 95% CL exclusion limits.
The shaded blue band indicates the ± 1σ uncertainty of the exclusion limits, while the yellow band indicates the ± 2σ uncertainty.
The values of the other three coefficients for each plot are fixed to 0. 
The VBF HH process is ignored for this result.
description: No data abstract available.
DOI: 10.17182/hepdata.137769.v1/t12
title: "Figure 14c" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: The observed 95% CL exclusion limits on the SMEFT coefficients in the two-dimensional spaces c<sub>t H</sub> vs. c<sub>H</sub> shown by the solid black lines. The displayed values are in units of $\mu_{ggF}$.
The dashed black line indicates the expected 95% CL exclusion limits.
The shaded blue band indicates the ± 1σ uncertainty of the exclusion limits, while the yellow band indicates the ± 2σ uncertainty.
The values of the other three coefficients for each plot are fixed to 0. 
The VBF HH process is ignored for this result.
description: No data abstract available.
DOI: 10.17182/hepdata.137769.v1/t13
title: "Figure 14d" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: The observed 95% CL exclusion limits on the SMEFT coefficients in the two-dimensional spaces c<sub>H□</sub> vs. c<sub>H</sub> shown by the solid black lines. The displayed values are in units of $\mu_{ggF}$.
The dashed black line indicates the expected 95% CL exclusion limits.
The shaded blue band indicates the ± 1σ uncertainty of the exclusion limits, while the yellow band indicates the ± 2σ uncertainty.
The values of the other three coefficients for each plot are fixed to 0. 
The VBF HH process is ignored for this result.
description: No data abstract available.
DOI: 10.17182/hepdata.137769.v1/t7
title: "Figure 12b" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: The expected and observed profile likelihood ratio scans for the κ<sub>2V</sub> coupling modifier, shown by the solid black line, using the coupling modifier as the POIs.
The value of κ<sub>λ</sub> is fixed to 1.
The dashed blue line shows the expected profile likelihood ratio, as obtained using a fit to the data with the background-only hypothesis.
The pink line indicates the 2σ exclusion boundary.
description: No data abstract available.
DOI: 10.17182/hepdata.137769.v1/t8
title: "Figure 13a" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: The observed profile likelihood ratio exclusion limits for the two-dimensional κ<sub>λ</sub> vs. κ<sub>2V</sub> modifier space, 
shown by the solid dark purple line at the 1σ level and the dashed turquoise line at the 2σ level.
The black cross denotes the best-fit values of (κ<sub>λ</sub>,κ<sub>2V</sub>). 
For both the expected and observed limit plots, the black star indicates the SM prediction (κ<sub>λ</sub>=κ<sub>2V</sub>=1).
description: No data abstract available.
DOI: 10.17182/hepdata.137769.v1/t9
title: "Figure 13b" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: The expected profile likelihood ratio exclusion limits for the two-dimensional κ<sub>λ</sub> vs. κ<sub>2V</sub> modifier space, 
where the solid pink line denotes the 1σ-level exclusion and the dashed orange line denotes the 2σ-level exclusion.
The black cross denotes the best-fit values of (κ<sub>λ</sub>,κ<sub>2V</sub>). 
For both the expected and observed limit plots, the black star indicates the SM prediction (κ<sub>λ</sub>=κ<sub>2V</sub>=1).
description: No data abstract available.
DOI: 10.17182/hepdata.137769.v1/t14
title: "Aux Figure 04a-0" of "Search for nonresonant pair production of Higgs bosons in the $b\bar{b}b\bar{b}$ final state in $pp$ collisions at $\sqrt{s}= 13$ TeV with the ATLAS detector"

description: Distributions of the reconstructed m<sub>HH</sub> in data (shown by the black points) and the estimated background (shown by the yellow histograms), in each of the six |Δη<sub>HH</sub>|/X<sub>HH</sub> categories in the ggF signal region, for the 2016 data. 
The hatching shows the total uncertainty on the background estimate. 
The distribution of the expected background is obtained using the best-fit values of the nuisance parameters in the background-only fit to the data.
Distributions of the SM and κ<sub>λ</sub>= 6 signal models are overlaid, scaled so as to be visible on the plot, and the scaling for each signal model is the same across the six categories.
The lower panels show the ratio of the observed data yield to the predicted background in each bin.
Events in the underflow and overflow bins are counted in the yields of the initial and final bins respectively.
In the HEPData entry, the raw value per histogram bin is provided, while in the published paper the values in the histogram are scaled by the bin width.
description: No data abstract available.