Present bounds on new neutral vector resonances from electroweak gauge boson pair production at the LHC

Abstract

Several extensions of the standard model predict the existence of new neutral spin-1 resonances associated with the electroweak symmetry breaking sector. Using the data from ATLAS (with integrated luminosity of $\mathcal{L}=1.02\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$) and CMS (with integrated luminosity of $\mathcal{L}=1.55\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$) on the production of ${W}^{+}{W}^{\ensuremath{-}}$ pairs through the process $pp\ensuremath{\rightarrow}{\ensuremath{\ell}}^{+}{\ensuremath{\ell}}^{\ensuremath{'}\ensuremath{-}}{\mathrm{E\ensuremath{\llap{\not\;}}}}_{T}$, we place model independent bounds on these new vector resonances masses, couplings, and widths. Our analyses show that the present data exclude new neutral vector resonances with masses up to 1--2.3 TeV depending on their couplings and widths. We also demonstrate how to extend our analysis framework to different models with a specific example.