On the modeling of $t\bar{t}{W}^{\pm }$ signatures at the LHC

Abstract

We discuss our recent progress on improving the theoretical description of the $pp\to t\bar{t}{W}^{\pm }$ process with particular focus on fiducial signatures that include top-quark decays. We employ a wide range of techniques from parton shower matching, narrow width approximation to full off-shell computations to assess the importance of the different modeling approaches.

Comments: 9 pages, 5 figures, contribution to the Proceedings of the 15th International Symposium on Radiative Corrections (RADCOR) and the XIX Workshop on Radiative Corrections for the LHC and Future Colliders (LoopFest), 2021