Search for new diboson resonances in the dilepton + jets final state at $\sqrt{s} = 13~\mathrm{TeV}$ with 2016 data

We present a search for new resonances decaying to a pair of Z bosons where one boson decays hadronically and the other decays into two charged leptons. Results are based on proton-proton collision data corresponding to an integrated luminosity of $12.9~\mathrm{fb}^{-1}$, collected by the CMS experiment at the CERN LHC at a centre-of-mass energy of $13~\mathrm{TeV}$. We use substructure techniques to identify hadronic jets that come from a single $\mathrm{Z\rightarrow q\bar{q}}$, and use kinematic and flavour information of reconstructed particles to achieve maximum separation between signal and background. Upper limits on resonance production cross-sections at $95\%$ confidence level are set separately for spin-0 and spin-2 resonance hypotheses. The range of excluded cross-sections is $5.0$ to $130~\mathrm{fb}$ in the former hypothesis and $3.3$ to $110~\mathrm{fb}$ in the latter.