### Z' bosons at the LHC in a modified MSSM.

G. Corcella
I study the production of heavy neutral gauge bosons $Z'$ at the LHC in U(1)$'$ models, inspired by Grand Unification Theories, as well as in the Sequential Standard Model, accounting for possible decays into supersymmetric channels. I shall consider the MSSM and present results on branching ratios and event rates with sparticle production at the LHC, taking particular care about final states with charged leptons and missing energy.