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 34.7fb−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 σtotal(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 with standard model predictions.

Measurement of the inclusive WZ production cross section in pp collisions at $$ \sqrt{\textrm{s}} $$ = 13.6 TeV

Alexe, C.;Bruschini, D.;
2025

Abstract

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 34.7fb−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 σtotal(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 with standard model predictions.
2025
Settore PHYS-01/A - Fisica sperimentale delle interazioni fondamentali e applicazioni
Electroweak Interaction, Hadron-Hadron Scattering, Vector Boson Production
  
     https://doi.org/10.1007/JHEP04(2025)115
     https://dx.doi.org/10.1007/JHEP04(2025)115
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11384/154984
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