Measurement of the Proton-Proton to ZZX Cross Section at A Center of Mass Energy of 8 TeV

A measurement of ZZ production in the 4l channel with pp collisions at sqrt(s)=8 TeV using the full 2012 dataset amounting to an integrated luminosity of 20 fb-1 collected by the ATLAS experiment is presented in this paper. An event is selected when exactly four reconstructed, isolated leptons are found in the final state. Each pair of leptons reconstructed to form a Z boson must have opposite sign and same flavor and have an invariant mass between 66 and 116 GeV. The background contribution is determined using a data-driven technique due to limited Monte Carlo statistics. Limits on the f_4^gamma, f_4^Z,f_5^gamma, f_5^Z anomalous triple gauge couplings are also presented.