Sensitivity study for a Z' boson decaying into two right-handed Majorana neutrinos at LHC in the ATLAS detector

In the theoretical framework of the Left-Right Symmetric Model and the See-Saw mechanism, we report on the discovery potential for a new neutral $Z'$ gauge boson decaying into two right-handed Majorana neutrinos ($N_{l}$'s) at the future LHC. The $pp \rightarrow Z' \rightarrow N_{e}N_{e}$ signals have been simulated in the ATLAS detector, and the observability contours in the $(m_{Z'},m_{N_{e}})$ plane are presented.