CMS
PRELIMINARY
SM
Search for resonant Higgs boson pair production in the bblνlν\mathrm{b}\overline{\mathrm{b}} \mathrm{l}\nu \mathrm{l}\nu final state at \sqrt{s} = 13~\mathrm{TeV}

A search for resonant Higgs bosons pair production decaying into bbWW\mathrm{b}\overline{\mathrm{b}} \mathrm{W}\mathrm{W} with subsequent WW\mathrm{W}\mathrm{W} decays into two leptons and two neutrinos, XHHbbWWbblνlν\mathrm{X} \to \mathrm{H}\mathrm{H} \to \mathrm{b}\overline{\mathrm{b}} \mathrm{W}\mathrm{W} \to \mathrm{b}\overline{\mathrm{b}} \mathrm{l}\nu \mathrm{l}\nu, is presented. The analysis is based on a sample of proton-proton collisions at \sqrt{s} = 13~\mathrm{TeV} at the LHC corresponding to an integrated luminosity of 2.3~\mathrm{fb}^{-1}. Masses are considered in the range between {\mathrm{m}}_{\mathrm{X}} = 260~\mathrm{GeV} and 900~\mathrm{GeV}. The search focuses on the invariant mass distribution of the b\mathrm{b}-jet pair, searching for a resonant-like excess compatible with the H\mathrm{H} boson mass in combination with a boosted decision tree discriminant based on kinematic information. Data and predictions from the standard model are in agreement within systematic uncertainties. For mass hypotheses from {\mathrm{m}}_{\mathrm{X}} = 500~\mathrm{GeV} to {\mathrm{m}}_{\mathrm{X}} = 900~\mathrm{GeV}, the data are observed (expected) to exclude a production cross-section times branching ratio of a spin-0 particle from 174174 to 101101 (135135 to 75.875.8) fb.

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