CERN LHC signatures of new gauge bosons in the minimal Higgsless model

Abstract

We study the LHC signatures of new gauge bosons in the gauge-invariant minimal Higgsless model. It predicts an extra pair of ${W}_{1}$ and ${Z}_{1}$ bosons which can be as light as $\ensuremath{\sim}400\text{ }\text{ }\mathrm{GeV}$ and play a key role in the delay of unitarity violation. We analyze the ${W}_{1}$ signals in $pp\ensuremath{\rightarrow}{W}_{0}{Z}_{0}{Z}_{0}\ensuremath{\rightarrow}jj4\ensuremath{\ell}$ and $pp\ensuremath{\rightarrow}{W}_{0}{Z}_{0}jj\ensuremath{\rightarrow}\ensuremath{\nu}3\ensuremath{\ell}jj$ processes at the LHC, including the complete electroweak and QCD backgrounds. We reveal the complementarity between these two channels for discovering the ${W}_{1}$ boson, and demonstrate the LHC discovery potential over the full range of allowed ${W}_{1}$ mass.