Year: 2026
Type: conference-paper
Abstract: We present the first observation of single top quark production in association with a W and a Z boson in proton-proton collisions using 13 and 13.6 TeV data recorded with the CMS detector corresponding to integrated luminosities of 138 and 61.9 fb$^{-1}$, respectively. Events are selected if they contain three or four charged leptons, which can be electrons or muons. State-of-the-art machine learning algorithms and sophisticated reconstruction methods result in an unprecedented sensitivity to tWZ production. We report the first observation of this rare process with a significance of more than five standard deviations.
DOI: 10.22323/1.485.0285
Author: Alberto Belvedere
Institution: Deutsches Elektronen-Synchrotron DESY
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W7127105867
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