Z'tc coupling from D0-D0 mixing

TL;DR

This paper constrains the $Z' tc$ coupling using $D^0-ar{D}^0$ mixing data and explores the potential for detecting $Z'$ boson resonance via single top production at future colliders.

Contribution

It provides the first bounds on the $Z' tc$ coupling from meson mixing and analyzes the prospects of observing $Z'$ mediated single top production at the ILC.

Findings

$Z' tc$ coupling less than $5.75 imes 10^{-2}$

Expected less than $10^7$ events at ILC

Branching ratio of $Z' o tc$ around $10^{-2}$

Abstract

We bound the $Z^\prime tc$ coupling using the $D^{0}-\bar{D^{0}}$ meson mixing system. We obtained such coupling which is less than $5.75\times 10^{-2}$. We have studied the $Z^\prime$ boson resonance considering single top production in the $e^+e^-\to Z^\prime\to tc$ process. We obtained the number of events which is expected to be less than $10^7$ at the International Linear Collider scenario. We get a branching ratio of the order of $10^{-2}$ for the $Z^\prime\to tc$ decay.