Measurement of the tZq cross section at 13 TeV with the CMS detector

2017/12/21 by N. Tonon, Nicolas Tonon, Tonon, Nicolas
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ex

paper · pdf · doi:10.48550/arxiv.1712.08046

5 pages, 1 figure

arxiv created 2017/12/21 · arxiv updated 2019/08/13

Abstract

Evidence is presented for standard model production of a Z boson in association with a single top quark. The analysis uses a data sample of proton-proton collisions at √(s) = 13 TeV recorded in 2016 by the CMS detector, corresponding to an integrated luminosity of 35.9 fb^-1. Final states containing three leptons (electrons or muons) and at least two jets are investigated, and the measured cross section is σ(pp → tZq → Wbℓ⁺ℓ^-q) = 123⁺⁴⁴_-39 fb, where ℓ stands for electrons, muons or taus. The corresponding observed (expected) significance is 3.7 (3.1) standard deviations.

Related

• Observation of tWZ production at the CMS experiment
• Three lepton signatures from tZq interactions in the SM and top-FCNC at the CMS experiment at √(s) = 8 TeV
• Measurements of inclusive and differential cross sections for top quark production in association with a Z boson in proton-proton collisions at √(s) = 13 TeV
• Measurement of the ttZ Production Cross Section in the Final State with Three Charged Leptons using 36.1 fb^-1 of pp Collisions at 13 TeV at the ATLAS Detector
• Measurements of single top quark cross sections at 13 TeV with the CMS experiment