Effect of Fermionic Operators on the Gauge Legacy of the LHC Run I

We revisit the extraction of the triple electroweak gauge boson couplings from the Large Hadron Collider Run I data on the \(W^+W^-\) and \(W^\pm Z\) productions when the analysis also contains additional operators that modify the couplings of the gauge bosons to light quarks and the gauge boson self-energies. We work in the framework of effective Lagrangians where we consider dimension-six operators and perform a global fit to consistently take into account the bounds on these additional operators originating from the electroweak precision data. We show that the constraints on the Wilson coefficients \(f_B/\Lambda^2\) and \(f_W/\Lambda^2\) are modified when we include the additional operators while the limits on \(f_{WWW}/\Lambda^2\) remain unchanged.