Measurement of inclusive and diferential cross sections of single top quark production in association with a W boson in proton-proton collisions at √s = 13.6 TeV
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13130_2025_Article_25346.pdf
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Author(s)
Hayrapetyan, A.
Tumasyan, A.
Adam, W.
Andrejkovic, J. W.
Bergauer, T.
Chatterjee, S.
Damanakis, K.
Dragicevic, M.
Hussain, P. S.
Jeitler, M.
Date Issued
January 21, 2025
Journal
Journal of High Energy Physics
Publisher
Springer Berlin Heidelberg
Citation
The CMS collaboration., Hayrapetyan, A., Tumasyan, A. et al. Measurement of inclusive and diferential cross sections of single top quark production in association with a W boson in proton-proton collisions at √s = 13.6 TeV. J. High Energ. Phys. 2025, 107 (2025).
Version
Final published version
Abstract
The first measurement of the inclusive and normalised differential cross sections of single top quark production in association with a W boson in proton-proton collisions at a centre-of-mass energy of 13.6 TeV is presented. The data were recorded with the CMS detector at the LHC in 2022, and correspond to an integrated luminosity of 34.7 fb−1. The analysed events contain one muon and one electron in the final state. For the inclusive measurement, multivariate discriminants exploiting the kinematic properties of the events are used to separate the signal from the dominant top quark-antiquark production background. A cross section of 82.3 ± 2.1 stat − 9.7 + 9.9 syst ± 3.3 lumi pb is obtained, consistent with the predictions of the standard model. A fiducial region is defined according to the detector acceptance to perform the differential measurements. The resulting differential distributions are unfolded to particle level and show good agreement with the predictions at next-to-leading order in perturbative quantum chromodynamics.
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1007/JHEP01(2025)107
