The first observation of top quark production in proton-nucleus collisions is reported using proton-lead data collected by the CMS experiment at the CERN LHC at a nucleon-nucleon center-of-mass energy of โˆšsNN=8.16โ€‰โ€‰TeV. The measurement is performed using events with exactly one isolated electron or muon candidate and at least four jets. The data sample corresponds to an integrated luminosity of 174โ€‰โ€‰nbโˆ’1. The significance of the tยฏt signal against the background-only hypothesis is above 5 standard deviations. The measured cross section is ฯƒtยฏt=45ยฑ8โ€‰โ€‰nb, consistent with predictions from perturbative quantum chromodynamics.

(2017). Observation of Top Quark Production in Proton-Nucleus Collisions [journal article - articolo]. In PHYSICAL REVIEW LETTERS. Retrieved from http://hdl.handle.net/10446/142727

Observation of Top Quark Production in Proton-Nucleus Collisions

Re, V.;Vai, I.;