{"@context":"http://schema.org","@id":"https://doi.org/10.17182/hepdata.107760.v1","@reverse":{"isBasedOn":[{"@type":"ScholarlyArticle","identifier":{"@type":"PropertyValue","propertyID":"URL","value":"https://inspirehep.net/literature/1915357"}},{"@id":"https://doi.org/10.1140/epjc/s10052-021-09878-z","@type":"JournalArticle"}]},"@type":"Dataset","additionalType":"Collection","author":{"@type":"Organization","name":"ATLAS Collaboration"},"creator":{"@type":"Organization","name":"ATLAS Collaboration"},"datePublished":"2021","description":"This paper presents a measurement of the electroweak production of two jets in association with a $Z\\gamma$ pair, with the $Z$ boson decaying into two neutrinos. It also presents a search for invisible or partially invisible decays of a Higgs boson with a mass of 125 GeV produced through vector-boson fusion with a photon in the final state. These results use data from LHC proton-proton collisions at $\\sqrt{s}$ = 13 TeV collected with the ATLAS detector and corresponding to an integrated luminosity of 139 fb$^{-1}$. The event signature, shared by all benchmark processes considered for the measurements and searches, is characterized by a significant amount of unbalanced transverse momentum and a photon in the final state, in addition to a pair of forward jets. Electroweak $Z\\gamma$ production in association with two jets is obseved in this final state with a significance of 5.2 (5.1 expected) standard deviations. The measured fiducial cross-section for this process is 1.31 $\\pm$ 0.29 fb. An observed (expected) upper limit of 0.37 (0.34) at 95% confidence level is set on the branching ratio of a 125 GeV Higgs boson to invisible particles, assuming the Standard Model production cross-section. The signature is also interpreted in the context of decays of a Higgs boson into a photon and a dark photon. An observed (expected) 95% CL upper limit on the branching ratio for this decay is set at 0.018 (0.017), assuming the Standard Model production cross-section for a 125 GeV Higgs boson.","hasPart":[{"@id":"https://doi.org/10.17182/hepdata.107760.v1/t1","@type":"Dataset","description":"Post-fit results for all $m_\\text{jj}$ SR and CR bins in the EW $Z \\gamma + \\text{jets}$ cross-section measurement with the...","name":"Figure 3"},{"@id":"https://doi.org/10.17182/hepdata.107760.v1/t2","@type":"Dataset","description":"Post-fit results for all DNN SR and CR bins in the search for $H \\to \\text{inv.}$ with the $\\mathcal{B}_\\text{inv}$ signal...","name":"Figure 4"},{"@id":"https://doi.org/10.17182/hepdata.107760.v1/t3","@type":"Dataset","description":"Post-fit results for the ten [$m_\\text{jj}$, $m_\\text{T}$] bins constituting the SR and CRs defined for the dark photon search with...","name":"Figure 5"},{"@id":"https://doi.org/10.17182/hepdata.107760.v1/t4","@type":"Dataset","description":"Post-fit $m_\\text{T}(\\gamma, E_\\text{T}^\\text{miss})$ distribution in the inclusive signal region for the dark-photon search with the 125 GeV mass $\\mathcal{B}(H \\to...","name":"Figure 6"},{"@id":"https://doi.org/10.17182/hepdata.107760.v1/t5","@type":"Dataset","description":"The 95% CL upper limit on the Higgs boson production cross-section times branching ratio to $\\gamma \\gamma_\\text{d}$ is shown for...","name":"Figure 7"},{"@id":"https://doi.org/10.17182/hepdata.107760.v1/t6","@type":"Dataset","description":"Post-fit $m_\\text{jj}$ distribution in the inclusive signal region. 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