Measurement of $$WW/WZ \rightarrow \ell \nu q q^{\prime }$$ W W / W Z → ℓ ν q q ′ production with the hadronically decaying boson reconstructed as one or two jets in pp collisions at $$\sqrt{s} =8~\text {TeV}$$ s = 8 TeV with ATLAS, and constraints on anomalous gauge couplings

Summary

This ATLAS collaboration paper presents precision measurements of WW/WZ production in proton-proton collisions at 8 TeV centre-of-mass energy, employing both resolved and merged jet reconstruction techniques to handle different boson momentum regimes. The transverse momentum distribution of the hadronically decaying boson was exploited to search for anomalous triple gauge couplings. Experimental observations were found to be consistent with Standard Model predictions, with confidence intervals established for beyond-Standard-Model coupling parameters.

UK applicability

Not applicable. This is fundamental particle physics research conducted at the CERN Large Hadron Collider and has no direct relevance to UK agricultural, soil, or food systems research.

Key measures

Fiducial cross-sections for WW/WZ production; transverse momentum distribution of hadronically decaying boson; 95% confidence intervals for anomalous gauge coupling parameters

Outcomes reported

The study measured WW/WZ production cross-sections in proton-proton collisions at 8 TeV using both resolved (two-jet) and merged (single-jet) reconstruction topologies. Observations were compared to Standard Model predictions and used to constrain anomalous triple gauge-boson coupling parameters.

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