Search for light vector resonances decaying to quarks at $\sqrt{s}=13~\mathrm{TeV}$

We perform a search for light, narrow vector resonances decaying to quarks in the mass range from 100-300 GeV produced in association with a high transverse momentum jet using $2.7~\mathrm{fb}^{-1}$ of 2015 $\sqrt{s}=13~\mathrm{TeV}$ proton-proton collision data collected by CMS. Novel jet substructure methods and background estimation techniques are employed to search for a resonance in the jet mass distribution originating from a new particle in whose decay the quarks are merged into a single jet. We demonstrate the CMS sensitivity to vector resonances in the mass-coupling phase space not yet explored at the LHC or by any past experiments.