Experimental results on $t\bar{t}+W/Z/\gamma$ and SM top couplings from the Tevatron and the LHC

TL;DR

This paper reports experimental measurements of top quark associated production with W, Z, and gamma bosons from Tevatron and LHC data, confirming consistency with Standard Model predictions.

Contribution

It provides the first evidence of both t-tbar-Z and t-tbar-W processes from multiple collider experiments, enhancing understanding of top quark couplings.

Findings

Evidence of t-tbar-Z and t-tbar-W production

Measurements agree with Standard Model predictions

Data from Tevatron and LHC are combined

Abstract

Experimental results from the CDF and D0 Collaborations at the Tevatron and the ATLAS and CMS Collaborations at the LHC on the processes related to probing top quark couplings are presented. Evidence of both $t\bar{t}Z$ and $t\bar{t}W$ processes is reported. All measurements are in agreement with the SM expectations.