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Measurements of the pp β†’ WZ inclusive and differential production cross sections and constraints on charged anomalous triple gauge couplings at βˆšπ‘  = 13 TeV

Sirunyan, A. M.
; 
Sanders, Stephen J.
; 
The CMS collaboration
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Abstract
The WZ production cross section is measured in proton-proton collisions at a centre-of-mass energy βˆšπ‘  = 13 TeV using data collected with the CMS detector, corresponding to an integrated luminosity of 35.9 fbβˆ’1. The inclusive cross section is measured to be Οƒtot(pp → WZ) = 48.09 + 1.00βˆ’β€‰0.96(stat) + 0.44βˆ’β€‰0.37(theo) + 2.39βˆ’β€‰2.17(syst) ± 1.39(lum) pb, resulting in a total uncertainty of βˆ’2.78/+2.98 pb. Fiducial cross section and ratios of charge-dependent cross section measurements are provided. Differential cross section measurements are also presented with respect to three variables: the Z boson transverse momentum pT, the leading jet pT, and the M(WZ) variable, defined as the invariant mass of the system composed of the three leptons and the missing transverse momentum. Differential measurements with respect to the W boson pT, separated by charge, are also shown. Results are consistent with standard model predictions, favouring next-to-next-to-leading-order predictions over those at next-to-leading order. Constraints on anomalous triple gauge couplings are derived via a binned maximum likelihood fit to the M(WZ) variable.
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This work is licensed under a Creative Commons Attribution 4.0 International License.
Date
2019-04-18
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Springer Verlag
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Physics & Astronomy Scholarly Works
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Keywords
Hadron-Hadron scattering (experiments), Particle and resonance production
Citation
The CMS collaboration., Sirunyan, A.M., Tumasyan, A. et al. Measurements of the pp β†’ WZ inclusive and differential production cross sections and constraints on charged anomalous triple gauge couplings at βˆšπ‘  = 13 TeV. J. High Energ. Phys. 2019, 122 (2019). https://doi.org/10.1007/JHEP04(2019)122
URI
https://hdl.handle.net/1808/31159
DOI
10.1007/JHEP04(2019)122
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