Measurement of the production cross section for single top quarks in association with W bosons in proton-proton collisions at $\sqrt{s}=$ 13 TeV

Understand

A measurement is presented of the associated production of a single top quark and a W boson in proton-proton collisions at $\sqrt{s}=$ 13 TeV by the CMS Collaboration at the CERN LHC.

• The data collected corresponds to an integrated luminosity of 35.9 fb$^{-1}$.
• The measurement is performed using events with one electron and one muon in the final state along with at least one jet originated from a bottom quark.
• A multivariate discriminant, exploiting the kinematic properties of the events, is used to separate the signal from the dominant $\mathrm{t\overline{t}}$ background.