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Compact Muon Solenoid
LHC, CERN

CMS-PAS-EXO-21-012
Search for dark matter particles produced in W$^{+}$W$^{-} $ events with transverse momentum imbalance in proton-proton collisions at $ \sqrt{s}= $ 13 TeV with the CMS detector
Abstract: A search for dark matter particles is performed using events with a pair of W bosons and large missing transverse momentum. Candidates are selected by requiring one or two leptons (electrons or muons) from the W boson decays. The analysis is based on proton-proton collision data taken at a center-of-mass energy of 13 TeV by the CMS experiment at the LHC and corresponding to an integrated luminosity of 137 fb$ ^{-1} $. No significant excess over the expected standard model background is observed in the semi- and di-leptonic final states of the W$^{+}$W$^{-}$ decay channel. Limits are set on dark matter production in the context of a dark Higgs simplified model, with a dark Higgs mass above the W$^{+}$W$^{-}$ mass threshold.
CMS Publications
Compact Muon Solenoid
LHC, CERN