Search for a narrow heavy decaying to bottom quark pairs in the 13 TeV data sample

An inclusive search for a narrow resonance produced in proton-proton collisions and decaying to a bottom quark-antiquark pair is presented. A data sample collected at $\sqrt{s}=13$~TeV and comprising 2.69~$\mathrm{fb}^{-1}$ of collision events recorded in 2015 with the CMS experiment at the CERN LHC has been analysed. The search focuses on the production of scalar resonances through gluon-gluon fusion, and of Randall–-Sundrum gravitons, both with a negligible natural width relative to the experimental dijet mass resolution. A maximum likelihood fit to the dijet mass spectrum is performed to separate the signal from the continuum multijet background. No significant excess over the expectation from the background is observed. Limits on production cross sections times branching ratio are obtained for values of the resonance mass ranging from 550 to 1200~GeV.