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We use the current CMS and ATLAS data for the leptonic $pp \to WW, WZ$channels to show that diboson production is, for a broad class of flavourmodels, already competitive with LEP-1 measurements for setting bounds on thedimension six operators parametrising the anomalous couplings between thequarks and the electroweak gauge bosons, at least under the assumption that anynew particle is heavier than a few TeV. We also make an estimate of the HL-LHCreach with $3$ ab$^{-1}$. We comment on possible BSM interpretations of thebounds, and show the interplay with other searches for a simplified model withvector triplets. We further study the effect of modified $Z$-quark-quarkcouplings on the anomalous triple gauge coupling bounds. We find that theirimpact is already significant and that it could modify the constraints on$\delta g_{1z}$ and $\delta \kappa_\gamma$ by as much as a factor two at theend of HL-LHC ($\lambda_\gamma$ is only marginally affected), requiring aglobal fit to extract robust bounds. We stress the role of flavour assumptionsand study explicitly flavour universal and minimal flavour violation scenarios,illustrating the differences with results obtained for universal theories.

Diboson at the LHC vs LEP