As an addendum to our previous evaluation of the weak-interaction corrections to hadronic top-quark pair production we determine the leading weak-interaction contributions due to the subprocesses $b { \bar b} \to t { \bar t}$ and $g q ({ \bar q}) \to t { \bar t} q ({ \bar q})$. For several distributions in $t { \bar t}$ production at the LHC we find that these contributions are non-negligible as compared to the weak corrections from the other partonic subprocesses.
Categories: hep-ph