Measurement of the inclusive WZ production cross section in pp collisions at √s = 13.6 TeV

Boos, E.; Bunichev, V.; Dubinin, M.; Dudko, L.; Gribushin, A.; Klyukhin, V.; Kodolova, O.; Lukina, O.; Obraztsov, S.; Petrushanko, S.; Savrin, V.; Snigirev, A.; CMS, C.

Авторы: Boos E., Bunichev V., Dubinin M., Dudko L., Gribushin A., Klyukhin V., Kodolova O., Lukina O., Obraztsov S., Petrushanko S., Savrin V., Snigirev A., CMS Collaboation
Журнал: Journal of High Energy Physics
Том: 2025
Номер: 04
Год издания: 2025
Издательство: IOP Publishing
Местоположение издательства: [Bristol, UK], England
Первая страница: 115
DOI: 10.1007/JHEP04(2025)115
Аннотация: The inclusive WZ production cross section is measured in proton-proton collisions at a centre-of-mass energy of 13.6 TeV, using data collected during 2022 with the CMS detector, corresponding to an integrated luminosity of 34.7 fb^−1. The measurement uses multileptonic final states and a simultaneous likelihood fit to the number of events in four different lepton flavour categories: eee, eeμ, μμe, and μμμ. The selection is optimized to minimize the number of background events, and relies on an efficient prompt lepton discrimination strategy. The WZ production cross section is measured in a phase space defined within a 30 GeV window around the Z boson mass, as σ_total(pp → WZ) = 55.2 ± 1.2(stat) ± 1.2(syst) ± 0.8(lumi) ± 0.3(theo) pb. In addition, the cross section is measured in a fiducial phase space closer to the detector-level requirements. All the measurements presented in this paper are in agreement withstandard model predictions.
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Measurement of the inclusive WZ production cross section in pp collisions at √s = 13.6 TeVстатья Исследовательская статья

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