Evidence for tWZ production in proton-proton collisions at s=13 TeV in multilepton final states

The CMS collaboration

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Abstract

The first evidence for the standard model production of a top quark in association with a W boson and a Z boson is reported. The measurement is performed in multilepton final states, where the Z boson is reconstructed via its decays to electron or muon pairs. At least one W boson, associated or from top quark decay, decays leptonically, too. The analysed data were recorded by the CMS experiment at the CERN LHC in 2016–2018 in proton-proton collisions at s=13 TeV, and correspond to an integrated luminosity of 138 fb−1. The measured cross section is 354±54(stat)±95(syst) fb, and corresponds to a statistical significance of 3.4 standard deviations.

Lingua originaleInglese
Numero di articolo138815
RivistaPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume855
DOI
Stato di pubblicazionePubblicato - ago 2024

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