Top quark flavor changing neutral currents at Future Linear Colliders

TL;DR

This paper analyzes the potential to observe top quark flavor-changing neutral currents at future linear colliders, focusing on theoretical predictions and production rates within specific dark matter models across a range of energies.

Contribution

It provides new estimates of top quark FCNC production rates at future colliders based on existing LHC bounds and theoretical models.

Findings

Predicted top quark FCNC decay rates into qH and qZ.

Estimated production rates at energies from 250 GeV to 3 TeV.

Assessment of collider sensitivity to top FCNC interactions.

Abstract

We discuss the production and the decay of top quark through flavor-changing neutral current (FCNC) interaction at future linear colliders. We first discuss the theoretical predictions of top quark FCNC decays into $qH$ and $qZ$ within a class of $t$-channel simplified dark matter models. For the existing bounds on the top quark FCNC interactions at the Large Hadron Collider, we estimate the production rates of top quark through FCNC interactions at future linear colliders for energies from $250$ GeV to $3$ TeV.