#### ${{\boldsymbol t}}{{\overline{\boldsymbol t}}}$ Production Cross Section in Nucleus-Nucleus Collisions

VALUE ($\mu$barn) DOCUMENT ID TECN  COMMENT
• • We do not use the following data for averages, fits, limits, etc. • •
$2.03$ ${}^{+0.71}_{-0.64}$ 1
 2020 BC
CMS ${}^{}\mathrm {Pb}-{}^{}\mathrm {Pb}$ collisions, dilepton + ${{\mathit b}}$-jets
$2.54$ ${}^{+0.84}_{-0.74}$ 2
 2020 BC
CMS ${}^{}\mathrm {Pb}-{}^{}\mathrm {Pb}$ collisions, dilepton only
 1 SIRUNYAN 2020BC based on ($1.7$ $\pm0.1$) nb${}^{-1}$ of lead-lead collision data at a nucleon-nucleon c.m. energy of 5.02 TeV. It makes use of the final-state dilepton kinematic properties together with requirements on the number of ${{\mathit b}}$-jets. The measured value is compatible with QCD predictions.
 2 SIRUNYAN 2020BC based on ($1.7$ $\pm0.1$) nb${}^{-1}$ of lead-lead collision data at a nucleon-nucleon c.m. energy of 5.02 TeV. It makes use of the final-state dilepton kinematic properties alone. The measured value is compatible with QCD predictions.
References:
 SIRUNYAN 2020BC
PRL 125 222001 Evidence for Top Quark Production in Nucleus-Nucleus Collisions