Observation of electroweak W+W pair production in association with two jets in proton-proton collisions at s=13TeV

The CMS collaboration

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Abstract

An observation is reported of the electroweak production of a W+W pair in association with two jets, with both W bosons decaying leptonically. The data sample corresponds to an integrated luminosity of 138 fb−1 of proton-proton collisions at s=13TeV, collected by the CMS detector at the CERN LHC. Events are selected by requiring exactly two opposite-sign leptons (electrons or muons) and two jets with large pseudorapidity separation and high dijet invariant mass. Events are categorized based on the flavor of the final-state leptons. A signal is observed with a significance of 5.6 standard deviations (5.2 expected) with respect to the background-only hypothesis. The measured fiducial cross section is 10.2±2.0fb and this value is consistent with the standard model prediction of 9.1±0.6fb.

Original languageEnglish
Article number137495
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume841
DOIs
StatePublished - 10 Jun 2023

Keywords

  • CMS
  • VBS
  • W pairs

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