| A study of the properties of the Zγ diboson system is presented using 5.0 fb−1 of proton-proton collision data from the LHC using the CMS detector. The pp → Z(→ µµ)γ and pp → Z(→ ee)γ production cross sections are measured within the fiducial volume of CMS with a combined measurement of σℓℓγ = 5.33 ± 0.08 (stat.) ± 0.25 (syst.) ± 0.12 (lumi.) pb that is in good agreement with Standard Model predictions. Upper limits on the neutral anomalous triple gauge couplings set are the most stringent limits on these couplings to date, with allowed regions: −0.010 < hg3 < 0.010, −8.8 · 10−5 < hg4 < 8.8 · 10−5, −8.6 · 10 −3 < hZ3 < 8.3 · 10−3, and −8.0 · 10−5 < hZ4 < 7.9 · 10−5 at 95% confidence level. |
