Search for heavy resonances decaying into a vector boson and a Higgs boson in the (ll, lnu, nunu) bb final state

A search for heavy resonances in final states with a Higgs boson and a vector boson, performed using 2.17--2.52 $\text{fb}^{-1}$ of data collected in 2015 by the CMS experiment at the LHC in proton-proton collisions with a center-of-mass energy $\sqrt{s}=13\,\text{TeV}$, is presented. The leptonic vector boson decays ($\text{Z} \to \nu\nu$, $\text{W} \to \ell \nu$, and $\text{Z} \to \ell \ell$, with $\ell = e,\mu$) are considered, while the Higgs boson is reconstructed from high-momentum b quark pairs and detected as a single massive jet. The discriminating power of the jet mass distribution and b tagging are exploited to suppress the amount of background from known standard model processes. The signal is characterized as a peak in the distribution of a kinematic variable related to the resonance mass and defined according to the considered final state. The result is consistent with the standard model prediction, and interpreted in terms of a benchmark model with a heavy vector triplet, as predicted in many scenarios of physics beyond the standard model.