Four Leptons Production in $e^{-}$ $e^{+}$ Collisions from 3-3-1 Model

Abstract

We study the process $e^{-}+e^{+}\to e^{+}+e^{+}+e^{-}+e^{-}$ for ILC and CLIC energy regimes, in the minimal 3-3-1 model framework. The main contributions, for the production of two bileptons each one decaying into two same-sign leptons, come from s-channel annihilation ({\it via} $\gamma ,Z$ and $Z^{\prime }$) and t-channel electron exchange. We evaluate the number of events for an extra neutral gauge boson mass $M_{Z^{\prime }}$ in the range 1 TeV to 3 TeV. We compare some distributions from 3-3-1 model with the Standard Model background in order to extract a possible signature of the contribution of bilepton and $Z^{\prime }$ for the process. From our analysis we conclude that our results give clear signals for physics beyond the Standard Model in e${}^{-}$ e${}^{+}$ colliders.

Comments: 13 pages, 7 figures and 1 table