Measurements of the electroweak production of a W boson in association with two jets at √(s)=13 TeV with the ATLAS detector

2026/07/23 by ATLAS Collaboration
#hep-ex

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Abstract

Measurements of the electroweak production of a W boson in association with two jets at high dijet invariant mass are performed using a dataset from 140 fb^-1 of √(s)=13 TeV proton-proton collisions recorded by the ATLAS detector at the LHC. The measurements are made in a fiducial region where the W boson's production via vector-boson fusion is enhanced. The fiducial region requires at least two jets, an electron or a muon, and a neutrino, assuming a leptonic W decay. In addition to the integrated production cross-section, differential cross-sections unfolded to particle level are determined as functions of observables which characterise angular properties of the two highest-energy jets, the kinematics of the W boson, and the transverse momenta of the highest-energy jet and the charged lepton. Results are interpreted in the context of an effective field theory, and the limits placed on anomalous triple-gauge-boson couplings are among the most stringent to date for linear terms of the extended Lagrangian.

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