Measurement of differential cross sections in the kinematic angular variable $\phi^*$ for inclusive Z boson production in pp collisions at $\sqrt{s}=$ 8 TeV
JHEP 1803 (2018) 172, 2018.
The collaboration

Abstract (data abstract)
CERN-LHC. Measurements of the differential cross section for Z production as a function of $\phi^*$ (phi*) and rapidity using the 2 electron and 2 muon final states. The fiducial region is defined as: - 2e or 2mu - one lepton with ptLepton > 30 GeV and |etaLepton|<2.1 - one lepton with ptLepton > 20 GeV and |etaLepton|<2.5 - mll must be between 60 and 120 GeV