# Observation of Top Quark Production in Proton-Nucleus Collisions

(CMS Collaboration)

34 引文 斯高帕斯（Scopus）

## 摘要

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 sNN=8.16 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 174 nb-1. The significance of the tt signal against the background-only hypothesis is above 5 standard deviations. The measured cross section is σtt=45±8 nb, consistent with predictions from perturbative quantum chromodynamics.

原文 ???core.languages.en_GB??? 242001 Physical Review Letters 119 24 https://doi.org/10.1103/PhysRevLett.119.242001 已出版 - 14 12月 2017