Heavy Vector-like Top Partners at the LHC and flavour constraints

TL;DR

This paper investigates the detection prospects and flavor physics constraints of heavy vector-like top quark partners at the LHC, focusing on less constrained doublet representations and their flavor mixing effects.

Contribution

It provides a detailed analysis of collider phenomenology and flavor constraints for vector-like quarks, especially in non-standard doublet representations, including effects of a generalized CKM matrix.

Findings

Heavy vector-like quarks can be detected at the LHC within certain parameter ranges.

Flavor constraints significantly restrict the allowed couplings and mixing angles.

Non-standard doublet representations are less constrained by current data.

Abstract

We consider the phenomenology at the Large Hadron Collider of new heavy vector-like quarks which couple mainly to the third generation quarks via Yukawa interactions, with special emphasis on non-standard doublet representations which are less constrained from present data. We also discuss in detail the flavour limits at tree level and loop level and implications of a generalised CKM mixing matrix to these cases.