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

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.

 Fuente: Physics Letters B, 2023, 841, 137495

 Publisher: Elsevier

 Publication date: 01/07/2023

 No. of pages: 25

 Publication type: Article

 DOI: 10.1016/j.physletb.2022.137495

 ISSN: 0370-2693,1873-2445

 Publication Url: