Year: 2009
Type: article
Abstract: We study the potential LHC discovery of the ${Z}_{1}$ Kaluza-Klein gauge boson unitarizing ${W}_{L}^{+}{W}_{L}^{\ensuremath{-}}$ scattering amplitude. In particular, we explore the decay mode ${Z}_{1}\ensuremath{\rightarrow}t\overline{t}$, along with ${Z}_{1}\ensuremath{\rightarrow}{W}^{+}{W}^{\ensuremath{-}}$, without specifying the branching fractions. We propose to exploit the associated production $pp\ensuremath{\rightarrow}W{Z}_{1}$ and select the final state of like-sign dileptons plus multijets and large missing energy. We conclude that it is possible to observe the ${Z}_{1}$ resonance at a $5\ensuremath{\sigma}$ level with an integrated luminosity of $100\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ at the LHC up to 650 GeV for a dominant $WW$ channel, and 560 GeV for a dominant $t\overline{t}$ channel.
Authors: Tao Han, Hai-shan Liu, Ming-xing Luo, Kai Wang, Wei Wu
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2144518611