Measurements of the top quark properties at decay with CMS

TL;DR

This paper reports CMS measurements of top quark decay properties, including W boson helicity, anomalous Wtb couplings, and searches for rare decays involving flavor-changing neutral currents.

Contribution

It provides new experimental results on top quark decay characteristics and rare decay searches, enhancing understanding of top quark interactions and potential new physics.

Findings

Measured W boson helicity fractions.

Set limits on anomalous Wtb couplings.

Conducted searches for rare decays t -> Zq and t -> Hq.

Abstract

CMS measurements of properties related to top quark decays are discussed. The results presented regard the measurement of the W boson helicity, the investigation of anomalous couplings in the Wtb vertex, and the search for very rare decays, such as t -> Zq and t -> Hq, which are associated to flavor-changing neutral currents.