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2026 preprint

Combination of vector boson scattering measurements in leptonic final states in proton-proton collisions at $ \sqrt{s} = $ 13 TeV

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A statistical combination of vector boson scattering measurements in proton-proton collisions at $ \sqrt{s} = $ 13 TeV is presented. The analysis is based on a dataset corresponding to an integrated luminosity of 138 fb$ ^{-1} $, collected with the CMS detector in 2016--2018. Events are selected to contain two vector bosons, with at least one decaying leptonically, and at least two additional jets with a high invariant mass and a large pseudorapidity separation. Signal rates are extracted for same-sign WW, opposite-sign WW, as well as for WZ and ZZ channels, and are compared with the standard model predictions. The combination provides a global view of vector boson scattering by simultaneously constraining all channels in a coherent framework, improving sensitivity beyond individual inputs, with all results in agreement with the standard model predictions. In addition, a charge-separated measurement is performed in which W bosons are distinguished according to their electric charge, allowing sensitivity to the production charge asymmetry.

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Sujets associés

Particle physics theoretical and experimental studiesHigh-Energy Particle Collisions ResearchQuantum Chromodynamics and Particle Interactions

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