Abstract

A search for decays to invisible particles of Higgs bosons produced in association with a top-antitop quark pair or a vector boson, which both decay to a fully hadronic final state, has been performed using proton-proton collision data collected at {sqrt{s}=13,text {Te}hspace{-.08em}text {V}} by the CMS experiment at the LHC, corresponding to an integrated luminosity of 138,text {fb}^{-1}. The 95% confidence level upper limit set on the branching fraction of the 125,text {Ge}hspace{-.08em}text {V} Higgs boson to invisible particles, {mathcal {B}({textrm{H}} rightarrow text {inv})}, is 0.54 (0.39 expected), assuming standard model production cross sections. The results of this analysis are combined with previous {mathcal {B}({textrm{H}} rightarrow text {inv})} searches carried out at {sqrt{s}=7}, 8, and 13,text {Te}hspace{-.08em}text {V} in complementary production modes. The combined upper limit at 95% confidence level on {mathcal {B}({textrm{H}} rightarrow text {inv})} is 0.15 (0.08 expected).

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