A sensitivity study of VBS and diboson WW to dimension-6 EFT operators at the LHC

We present a parton-level study of electro-weak production of vector-boson pairs at the Large Hadron Collider, establishing the sensitivity to dimension-six operators in Effective Field Theory (EFT). We consider a minimal set of operators extracted from the Warsaw basis and perform a one- and two-dimensional likelihood analysis in which operator contributions are parametrised, taking into account both linear and quadratic terms in EFT contributions. In addition, different final states are statistically combined, to show how the orthogonality and interdependence of different analyses must be considered to obtain the most stringent constraints.