Abstract

This paper reports cross-section measurements of ZZ production in pp collisions at root s = 13.6 TeV at the Large Hadron Collider. The data were collected by the ATLAS detector in 2022, and correspond to an integrated luminosity of 29 fb(-1). Events in the ZZ -> 4l (l = e, mu) final states are selected and used to measure the inclusive and differential cross-sections in a fiducial region defined close to the analysis selections. The inclusive cross-section is further extrapolated to the total phase space with a requirement of 66 < m(Z) < 116 GeV for both bosons, yielding 16.8 +/- 1.1 pb. The results are well described by the Standard Model predictions.