{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.150977.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/2781483"}},{"@id":"https://doi.org/10.1016/j.physletb.2024.139007","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ATLAS Collaboration"},"creator":{"@type":"Organization","name":"ATLAS Collaboration"},"datePublished":"2024","description":"Search for pair production of boosted Higgs bosons in the $b\\bar{b}b\\bar{b}$ final state in $pp$ collisions at $\\sqrt{s} = 13$ TeV with the ATLAS detector A search for Higgs boson ($H$) pair production via vector boson fusion (VBF) is performed in the Lorentz-boosted regime using 140 fb$^{-1}$ of proton-proton collision data at 13 TeV recorded by the ATLAS detector. Only Higgs boson decays to bottom quark pairs are considered. The search constrains the quartic coupling between two vector bosons and two Higgs bosons relative to its Standard Model prediction, $\\kappa_{2V}$, to $0.6 < \\kappa_{2V} < 1.5$ at 95% confidence level, when combining with the equivalent resolved analysis. The value $\\kappa_{2V} = 0$ is excluded with a significance of $3.8 \\sigma$ with other $H$ couplings fixed to their SM values. A search for new heavy spin-0 resonances that would mediate VBF Higgs pair production is carried out in the mass range of 1-5TeV for the first time under multiple model and decay-width assumptions. No significant deviations from the SM hypotheses are observed and exclusion limits at 95% confidence level are derived.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.150977.v1/t1","@type":"Dataset","description":"The mass planes of the reconstructed Higgs boson candidates for the 1Pass selections of the analysis, shown for the data...","name":"2D $m_H$ distribution for Data 1Pass"},{"@id":"https://doi.org/10.17182/hepdata.150977.v1/t2","@type":"Dataset","description":"The mass planes of the reconstructed Higgs boson candidates for the 2Pass selections of the analysis, shown for the data...","name":"2D $m_H$ distribution for Data 2Pass"},{"@id":"https://doi.org/10.17182/hepdata.150977.v1/t3","@type":"Dataset","description":"The mass planes of the reconstructed Higgs boson candidates for the 2Pass selections of the analysis, shown for the VBF...","name":"2D $m_H$ distribution for VBF $\\kappa_{2V}=1$ 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for the resolved (dotted green) and boosted (dashed blue) analyses, and...","name":"Expected likelihood scan vs k2V"},{"@id":"https://doi.org/10.17182/hepdata.150977.v1/t8","@type":"Dataset","description":"Observed $-2\\ln\\Lambda$ values of boosted-only result in the $\\kappa_{\\Lambda}-\\kappa_{2V}$ plane.","name":"Obs 2DNLL vs $\\kappa_{2V}$ and $\\kappa_{\\lambda}$(Boosted)"},{"@id":"https://doi.org/10.17182/hepdata.150977.v1/t9","@type":"Dataset","description":"Observed $-2\\ln\\Lambda$ values of resolved-only result in the $\\kappa_{\\Lambda}-\\kappa_{2V}$ plane.","name":"Obs 2DNLL vs $\\kappa_{2V}$ and $\\kappa_{\\lambda}$(Resolved)"},{"@id":"https://doi.org/10.17182/hepdata.150977.v1/t10","@type":"Dataset","description":"Observed $-2\\ln\\Lambda$ values of combination result in the $\\kappa_{\\Lambda}-\\kappa_{2V}$ plane.","name":"Obs 2DNLL vs $\\kappa_{2V}$ and $\\kappa_{\\lambda}$(Comb)"},{"@id":"https://doi.org/10.17182/hepdata.150977.v1/t11","@type":"Dataset","description":"Expected $-2\\ln\\Lambda$ values of boosted-only result in the $\\kappa_{\\Lambda}-\\kappa_{2V}$ plane.","name":"Exp 2DNLL vs $\\kappa_{2V}$ and $\\kappa_{\\lambda}$(Boosted)"},{"@id":"https://doi.org/10.17182/hepdata.150977.v1/t12","@type":"Dataset","description":"Expected $-2\\ln\\Lambda$ values of resolved-only result in the $\\kappa_{\\Lambda}-\\kappa_{2V}$ plane.","name":"Exp 2DNLL vs $\\kappa_{2V}$ and $\\kappa_{\\lambda}$(Resolved)"},{"@id":"https://doi.org/10.17182/hepdata.150977.v1/t13","@type":"Dataset","description":"Expected $-2\\ln\\Lambda$ values of combination result in the $\\kappa_{\\Lambda}-\\kappa_{2V}$ plane.","name":"Exp 2DNLL vs $\\kappa_{2V}$ and $\\kappa_{\\lambda}$(Comb)"},{"@id":"https://doi.org/10.17182/hepdata.150977.v1/t14","@type":"Dataset","description":"Expected (dashed black lines) and observed (solid black lines) 95% CL upper limits on the cross-section of spin-0 heavy resonances...","name":"Observed or expected limits vs $m_{X}$ (narrow-width)"},{"@id":"https://doi.org/10.17182/hepdata.150977.v1/t15","@type":"Dataset","description":"Expected (dashed black lines) and observed (solid black lines) 95% CL upper limits on the cross-section of spin-0 heavy resonances...","name":"Observed or expected limits vs $m_{X}$ (large-width)"},{"@id":"https://doi.org/10.17182/hepdata.150977.v1/t16","@type":"Dataset","description":"Observed and expected 95% CL exclusion limits on the production cross-sections of the combined VBF HH process as a function...","name":"Cross-section limit scan vs $\\kappa_{2V}$"},{"@id":"https://doi.org/10.17182/hepdata.150977.v1/t17","@type":"Dataset","description":"Observed and expected 95% CL exclusion limits on the production cross-sections of the combined HH process as a function of...","name":"Cross-section limit scan vs $\\kappa_{\\lambda}$"},{"@id":"https://doi.org/10.17182/hepdata.150977.v1/t18","@type":"Dataset","description":"Observed \u22122 ln \u039b as a function of $\\kappa_{\\lambda}$ with the $\\kappa_{2V}$ and $\\kappa_{V}$ modifiers fixed to unity.","name":"Observed likelihood scan vs $\\kappa_{\\lambda}$"},{"@id":"https://doi.org/10.17182/hepdata.150977.v1/t19","@type":"Dataset","description":"Expected \u22122 ln \u039b as a function of $\\kappa_{\\lambda}$ with the $\\kappa_{2V}$ and $\\kappa_{V}$ modifiers fixed to unity.","name":"Expected likelihood scan vs $\\kappa_{\\lambda}$"},{"@id":"https://doi.org/10.17182/hepdata.150977.v1/t20","@type":"Dataset","description":"Cumulative acceptance times efficiency as a function of resonance mass for each event selection step for the narrow-width signal","name":"Acceptance $\\times$ efficiency vs $m_{X}$ (narrow-width)"},{"@id":"https://doi.org/10.17182/hepdata.150977.v1/t21","@type":"Dataset","description":"Cumulative acceptance times efficiency as a function of resonance mass for each event selection step for the broad-width signal","name":"Acceptance $\\times$ efficiency vs $m_{X}$ (large-width)"},{"@id":"https://doi.org/10.17182/hepdata.150977.v1/t22","@type":"Dataset","description":"Cumulative acceptance times efficiency as a function of $\\kappa_{2V}$ for each event selection step for the nonresonant signal.","name":"Acceptance $\\times$ efficiency vs $\\kappa_{2V}$"},{"@id":"https://doi.org/10.17182/hepdata.150977.v1/t23","@type":"Dataset","description":"The distributions of the invariant mass of the HH system for various values of $\\kappa_{2V}$ .","name":"m_HH distributions vs k2V"}],"identifier":[{"@type":"PropertyValue","propertyID":"HEPDataRecord","value":"https://www.hepdata.net/record/ins2781483?version=1"},{"@type":"PropertyValue","propertyID":"HEPDataRecordAlt","value":"https://www.hepdata.net/record/150977"}],"inLanguage":"en","name":"Search for pair production of boosted Higgs bosons via 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