文摘
The and ZZ production cross sections are measured in proton-proton collisions at with the CMS experiment at the LHC in data samples corresponding to an integrated luminosity of up to . The measurements are performed in the leptonic decay modes and , where and . The measured cross sections and , for both Z bosons produced in the mass region , are consistent with standard model predictions. These are the first measurements of the diboson production cross sections at .