Measurement of the associated production of a single top quark and a Z boson in pp collisions at √s=13TeV

CMS Collaboration

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Abstract

A measurement is presented of the associated production of a single top quark and a Z boson. The study uses data from proton–proton collisions at s=13TeV recorded by the CMS experiment, corresponding to an integrated luminosity of 35.9 fb−1. Using final states with three leptons (electrons or muons), the tZq production cross section is measured to be σ(pp→tZq→Wbℓ+ℓ−q)=123−31 +33(stat)−23 +29(syst)fb, where ℓ stands for electrons, muons, or τ leptons, with observed and expected significances of 3.7 and 3.1 standard deviations, respectively.
Original languageEnglish
Pages (from-to)358-384
Number of pages27
JournalPhysics Letters B
Volume779
DOIs
Publication statusPublished - 2018
Externally publishedYes

Keywords

  • SM
  • Single top
  • Cross section
  • tZq

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