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Motivated by ATLAS diboson excess around 2 TeV, we investigate aphenomenology of spin-1 resonances in a model where electroweak sector in theSM is weakly coupled to strong dynamics. The spin-1 resonances, W' and Z', areintroduced as effective degrees of freedom of the dynamical sector. We exploreseveral theoretical constraints by investigating the scalar potential of themodel as well as the current bounds from the LHC and precision measurements. Itis found that the main decay modes are V' -> VV and V' -> Vh, and the V' widthis narrow enough so that the ATLAS diboson excess can be explained. In order toinvestigate future prospects, we also perform collider simulations at the 13TeV LHC, and obtain a model independent expected exclusion limit for theprocess pp -> W' -> WZ -> JJ. We find a parameter space where the dibosonexcess can be explained, and are within a reach of the LHC at the integratedluminosity of 10 fb-1 and 13 TeV.

Prospects for Spin-1 Resonance Search at 13 TeV LHC and the ATLAS Diboson Excess