Exclusion Limits on Neutral, Singly and Doubly Charged Vector Bosons at LHC

In this paper, limits are set on $Z^\prime$, doubly-charged and singly-charged bileptons masses in the context of the the 331 model. The following measurable processes are studied: $pp \rightarrow \ell^{+}\ell^{+}\ell^{-}\ell^{-}X$, $pp \rightarrow \ell^{+}\ell^{-} \nu \nu X$ and $pp \rightarrow \ell^{+}\ell^{-} X$. Experimental limits on singly-charged bileptons within 331 models obtained for the first time. The mass lower bounds obtained are 3.7 TeV for $Z^\prime_{331}$, 1.2 TeV for doubly-charged bileptons and 850 GeV for singly-charged bileptons. The computed limits are now the most stringent ones for these particles.