Top Quark Properties

Abstract

Recently, experimental collaborations have reported $\mathcal{O}(10)$ upper limits on the signal strength of four-top production at the LHC, which already leads to competitive constraints on certain type of top-quark operators. On the other hand, developments in the $b$-jet charge tagging algorithms open up new possibilities for the direct measurement of the top-quark width. In this talk, we briefly discuss some recent studies in these two directions.

5 pages, 2 figures. To appear in the Proceedings of the 10th International Workshop on Top Quark Physics (TOP2017), Braga, Portugal, September 17-22, 2017

References in corpus (2)

• Direct top-quark decay width measurement in the $t\bar{t}$ lepton+jets channel at $\sqrt{s}$=8 TeV with the ATLAS experiment
• Probing the top-quark width using the charge identification of $b$ jets