Combination of Run-1 Exotic Searches in Diboson Final States at the LHC

We perform a statistical combination of the ATLAS and CMS results for the search of a heavy resonance decaying to a pair of vector bosons with the p s = 8 TeV datasets collected at the LHC. We take into account six searches in hadronic and semilep- tonic nal states carried out by the two collaborations. We consider only public information provided by ATLAS and CMS in the HEPDATA database and in papers published in ref- ereed journals. We interpret the combined results within the context of a few benchmark new physics models, such as models predicting the existence of a W 0 or a bulk Randall- Sundrum spin-2 resonance, for which we present exclusion limits, signicances, p-values and best-t cross sections. A heavy diboson resonance with a production cross section of 4{5 fb and mass between 1.9 and 2.0 TeV is the exotic scenario most consistent with the experimental results. Models in which a heavy resonance decays preferentially to a WW nal state are disfavoured.