Search for invisible decays of a Higgs boson produced through vector boson fusion at the High-Luminosity LHC

The search for a Higgs boson decaying to invisible particles, produced through the vector boson fusion mode in the High-Luminosity LHC proton-proton collisions at $\sqrt{s}=14~\mathrm{TeV}$, is investigated based on simulation studies using Delphes, a fast-simulation package used to provide a parameterised response of the upgraded CMS detector. The event selection follows the existing CMS Run II data analysis, optimised for the High-Luminosity LHC conditions. The $95\%$ confidence-level upper limits on the branching fraction of a standard-model-like Higgs boson decaying to invisible final states are studied with integrated luminosities of $300$, $1000$ and $3000~\mathrm{fb}^{-1}$ as a function of the thresholds applied on the transverse energy of the recoiling Higgs boson deposited in the detector.