Speaker
Mr
Georgios Krintiras
(Universite Catholique de Louvain (UCL) (BE))
Description
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 $\sqrt{s_\text{NN}}$ = 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 $t\bar{t}$ signal against the background-only hypothesis is above five standard deviations. The measured cross section is $\sigma($t\bar{t}$) = 45 \pm 8$ nb, consistent with predictions from perturbative quantum chromodynamics.
| Content type | Experiment |
|---|---|
| Collaboration | CMS |
| Centralised submission by Collaboration | Presenter name will be specified later |
