Measurement of the Z$γ$ production cross section and search for anomalous neutral triple gauge couplings in pp collisions at $\sqrt{s}$ = 13 TeV

The CMS collaboration
Hayrapetyan, Aram , Tumasyan, Armen , Adam, Wolfgang , Andrejkovic, Janik Walter , Bergauer, Thomas , Chatterjee, Suman , Damanakis, Konstantinos , Dragicevic, Marko , Hussain, Priya Sajid , Jeitler, Manfred
CMS-SMP-22-009, 2026.

Abstract (data abstract)
Measurement of the $Z\gamma$ production cross section and search for anomalous neutral triple gauge couplings in pp collisions at $\sqrt{s}=13$ TeV. CMS SMP-22-009. Dataset: full Run-2 pp collisions at $\sqrt{s}=13$ TeV corresponding to 138 fb$^{-1}$. This HEPData submission provides: (i) post-fit, reconstruction-level $p_{T}^{\gamma}$ distributions in the ECAL barrel (EB) and endcaps (EE) signal regions corresponding to Figure 4, with observed data and post-fit yields for the fitted components; (ii) measured and predicted fiducial cross sections (Table 3); (iii) measured and predicted cross sections vs $p_{T}^{\gamma}$ (Table 4); (iv) expected and observed 95% CL intervals for anomalous neutral triple gauge coupling parameters (Table 5).

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