  The dilepton final states, e+e- and mu+mu-, are the most clear channels for
new heavy neutral resonances search. Their advantage is that the main
irreducible background from the Standard Model Drell-Yan process contributes
usually two orders of magnitude lower than the expected signal under the peak
region. In this paper we are focused on the search of the excited neutral
bosons Z*. At present only the ATLAS Collaboration is looking for such
excitations at LHC. We compare our evaluations with the official collaboration
results at 7 TeV, and present our estimations at higher centre-of-mass energies
in pp collisions and different luminosities.
