Observation of tW production in the single-lepton channel in pp collisions at √s = 13 TeV
Document Type
Article
Abstract
A measurement of the cross section of the associated production of a single top quark and a W boson in final states with a muon or electron and jets in proton-proton collisions at s = 13 TeV is presented. The data correspond to an integrated luminosity of 36 fb−1 collected with the CMS detector at the CERN LHC in 2016. A boosted decision tree is used to separate the tW signal from the dominant tt ¯ background, whilst the subleading W+jets and multijet backgrounds are constrained using data-based estimates. This result is the first observation of the tW process in final states containing a muon or electron and jets, with a significance exceeding 5 standard deviations. The cross section is determined to be 89 ± 4 (stat) ± 12 (syst) pb, consistent with the standard model. [Figure not available: see fulltext.]
Department(s)
Physics and Engineering
Publication Title
Journal of High Energy Physics
Volume
2021
Issue
11
Publication Date
11-1-2021
DOI
10.1007/JHEP11(2021)111
E-ISSN
10298479
Recommended Citation
The CMS Collaboration; Tumasyan, A.; Adam, W.; Andrejkovic, J. W.; Bergauer, T.; Chatterjee, S.; and Hogan, Julie M., "Observation of tW production in the single-lepton channel in pp collisions at √s = 13 TeV" (2021). Physics and Engineering Faculty Publications. 59.
https://spark.bethel.edu/physics-faculty/59
Comments
The CMS Collaboration includes over 100 authors. This record includes the Bethel author and the first 5 authors listed. The full list of authors can be viewed on the downloaded document or at the original publisher's website - https://doi.org/10.1007/JHEP11(2021)111