Measurement of the Associated Production of a Single Top Quark and a Z Boson in pp Collisions at √s = 13 TeV

Physics Letters B 2018
Viesturs Veckalns, CERN international group of authors

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.

Keywords
Cross section, Single top, SM, tZq
DOI
10.1016/j.physletb.2018.02.025
Hyperlink
https://www.sciencedirect.com/science/article/pii/S0370269318301278?via%3Dihub

Veckalns, V., international group of authors, C. Measurement of the Associated Production of a Single Top Quark and a Z Boson in pp Collisions at √s = 13 TeV. Physics Letters B, 2018, Vol.779, pp.358-384. ISSN 0370-2693. Available from: doi:10.1016/j.physletb.2018.02.025

Publication language
English (en)