$Z \gamma$ production and limits on anomalous $Z Z \gamma$ and $Z \gamma \gamma$ couplings in $p\bar{p}$ collisions at $\sqrt{s}$ = 1.96- TeV
Phys.Lett.B 653 (2007) 378-386, 2007.
The collaboration

Abstract (data abstract)
Fermilab-Tevatron. Measurement of the cross section for Z0-GAMMA production in PBAR P interactions at centre of mass energy of 1.96 TeV. The data sample of integrated luminosity 1109 +- 98 (1009 +- 62) pb for the electron (muon) final state was collected between October 2002 and February 2006. A photon of minimum transverse energy 7 GeV is required separated from both leptons from the Z0 decay by Delta-R & gt; 0.7.