New, massive bosons could be found with the LHC. Theories with warped extra dimensions and supersymmetry predict the existence of such resonances, which for some model parameters, have a significant branching fraction to two Higgs bosons. A search for such particles in the $\mathrm{ X}\rightarrow\mathrm{ HH}\rightarrow\mathrm{ b\overline{ b}q\overline{ q}'}\ell\nu$ channel with the CMS detector is presented. The analysis uses data collected during Run 2 of the LHC at a centre-of-mass energy of 13 TeV. Background is suppressed by reconstructing the full $\mathrm{ HH}$ decay chain using jet substructure techniques and the identification of leptons with nearby, boosted jets. A two-dimensional template fit in the plane of resonance the mass and the $\mathrm{ H}\rightarrow\mathrm{ b\overline{ b}}$ mass is used to characterize potential signal with this final state.
Categories: hep-ex