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A search is presented for a narrow resonance decaying to a pair of Z bosonsusing data corresponding to 1.02/fb of integrated luminosity collected by theATLAS experiment from pp collisions at sqrt(s) = 7 TeV. Events containingeither four charged leptons (llll) or two charged leptons and two jets (lljj)are analyzed and found to be consistent with the Standard Model backgroundexpectation. Lower limits on a resonance mass are set using the Randall-Sundrum(RS1) graviton model as a benchmark. Using both llll and lljj events, an RS1graviton with k/m_pl = 0.1 and mass between 325 and 845 GeV is excluded at 95%confidence level. In addition, the llll events are used to set a fiducial crosssection limit of sigma_fiducial(pp -> X -> ZZ < 0.92 pb at 95% confidence levelfor any new sources of ZZ production with m_ZZ greater than 300 GeV.

Search for new particles decaying to ZZ using final states with leptons and jets with the ATLAS detector in sqrt(s) = 7 Tev proton-proton collisions