{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.130795.v2","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/2098277"}},{"@id":"https://doi.org/10.1007/JHEP07(2023)095","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"CMS Collaboration"},"creator":{"@type":"Organization","name":"CMS Collaboration"},"datePublished":"2024","description":"The results of a search for Higgs boson pair ($\\textrm{HH}$) production in the $\\textrm{WW}^{*}\\textrm{WW}^{*}$, $\\textrm{WW}^{*}\\tau\\tau$, and $\\tau\\tau\\tau\\tau$ decay modes are presented. The search uses $138~\\text{fb}^{-1}$ of proton-proton collision data recorded by the CMS experiment at the LHC at a center-of-mass energy of $13~\\mathrm{TeV}$ from 2016 to 2018. Analyzed events contain two, three, or four reconstructed leptons, including electrons, muons, and hadronically decaying tau leptons. No evidence for a signal is found in the data. Upper limits are set on the cross section for nonresonant $\\textrm{HH}$ production, as well as resonant production in which a new heavy particle decays to a pair of Higgs bosons. For nonresonant production, the observed (expected) upper limit on the cross section at $95\\%$ confidence level (CL) is $21.3$ ($19.4$) times the standard model (SM) prediction. The observed (expected) ratio of the trilinear Higgs boson self-coupling to its value in the SM is constrained to be within the interval $-6.9$ to $11.1$ ($-6.9$ to $11.7$) at $95\\%$ CL, and limits are set on a variety of new-physics models using an effective field theory approach. The observed (expected) limits on the cross section for resonant $\\textrm{HH}$ production range from $0.18$ to $0.90$ ($0.08$ to $1.06$)$~\\mathrm{pb}$ at $95\\%$ CL for new heavy-particle masses in the range $250$--$1000~\\mathrm{GeV}$.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.130795.v2/t1","@type":"Dataset","description":"Distribution of an input to the BDT classifier in the $2\\ell$(ss) category: The scalar $p_{T}$ sum, denoted as $H_{T}$, of...","name":"Figure 4-a"},{"@id":"https://doi.org/10.17182/hepdata.130795.v2/t2","@type":"Dataset","description":"Distribution of an input to the BDT classifier in the $2\\ell$(ss) category: The angular separation $\\Delta R$ between the two...","name":"Figure 4-b"},{"@id":"https://doi.org/10.17182/hepdata.130795.v2/t3","@type":"Dataset","description":"Distribution of an input to the BDT classifier in the $3\\ell$ category: The angular separation between $\\ell_{3}$ and the nearest...","name":"Figure 4-c"},{"@id":"https://doi.org/10.17182/hepdata.130795.v2/t4","@type":"Dataset","description":"Distribution of an input to the BDT classifier in the $3\\ell$ category: The linear discrimminant $p_{T}^{miss,LD}$. The discriminant is defined...","name":"Figure 4-d"},{"@id":"https://doi.org/10.17182/hepdata.130795.v2/t5","@type":"Dataset","description":"Distributions of the transverse mass $m_{T}$ of the lepton that is not originating from the Z boson decay and the...","name":"Figure 5-a"},{"@id":"https://doi.org/10.17182/hepdata.130795.v2/t6","@type":"Dataset","description":"Distributions of the four lepton invariant mass $m_{4\\ell}$ in the $4\\ell$/ZZ control region. The distributions expected for the ZZ as...","name":"Figure 5-b"},{"@id":"https://doi.org/10.17182/hepdata.130795.v2/t7","@type":"Dataset","description":"Distributions of the transverse mass $m_{T}$ of the leading lepton and the missing transverse momentum in the $2\\ell$(ss) control region....","name":"Figure 6-a"},{"@id":"https://doi.org/10.17182/hepdata.130795.v2/t8","@type":"Dataset","description":"Distributions of the reconstructed HH mass $m_{HH}$ in the $2\\ell+2 au_{h}$ control region. The distributions expected for the misidentified $\\ell/...","name":"Figure 6-b"},{"@id":"https://doi.org/10.17182/hepdata.130795.v2/t9","@type":"Dataset","description":"Distribution in the output of the BDT trained for nonresonant HH production and evaluated for the benchmark scenario JHEP04 BM7...","name":"Figure 7-a"},{"@id":"https://doi.org/10.17182/hepdata.130795.v2/t10","@type":"Dataset","description":"Distribution in the output of the BDT trained for nonresonant HH production and evaluated for the benchmark scenario JHEP04 BM7...","name":"Figure 7-b"},{"@id":"https://doi.org/10.17182/hepdata.130795.v2/t11","@type":"Dataset","description":"Distribution in the output of the BDT trained for nonresonant HH production and evaluated for the benchmark scenario JHEP04 BM7...","name":"Figure 7-c"},{"@id":"https://doi.org/10.17182/hepdata.130795.v2/t12","@type":"Dataset","description":"Distribution in the output of the BDT trained for nonresonant HH production and evaluated for the benchmark scenario JHEP04 BM7...","name":"Figure 8-a"},{"@id":"https://doi.org/10.17182/hepdata.130795.v2/t13","@type":"Dataset","description":"Distribution in the output of the BDT trained for nonresonant HH production and evaluated for the benchmark scenario JHEP04 BM7...","name":"Figure 8-b"},{"@id":"https://doi.org/10.17182/hepdata.130795.v2/t14","@type":"Dataset","description":"Distribution in the output of the BDT trained for nonresonant HH production and evaluated for the benchmark scenario JHEP04 BM7...","name":"Figure 8-c"},{"@id":"https://doi.org/10.17182/hepdata.130795.v2/t15","@type":"Dataset","description":"Distribution in the output of the BDT trained for nonresonant HH production and evaluated for the benchmark scenario JHEP04 BM7...","name":"Figure 8-d"},{"@id":"https://doi.org/10.17182/hepdata.130795.v2/t16","@type":"Dataset","description":"Observed and expected $95\\%$ CL upper limits on the SM HH production cross section, obtained for both individual search 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TeV","provider":{"@type":"Organization","name":"HEPData"},"publisher":{"@type":"Organization","name":"HEPData"},"url":"https://www.hepdata.net/record/ins2098277?version=2","version":2}