Single top production via FCNC couplings at an $$e^{-}e^{+}$$ e - e + collider with center-of-mass energy $$\sqrt{s}=240$$ s = 240 GeV
The European Physical Journal Plus(2022)
Abstract
Aspects of top quark physics can be studied at a future Circular Electron-Positron Collider. In particular, flavor-changing neutral current interactions (FCNC) of the top quark can be studied even with a center-of-mass energy from
$$\sqrt{s}\gtrsim m_t$$
to
$$\sqrt{s}=240$$
GeV, through the production a single top quark in association with a charm quark, which can arise in several scenarios of new physics. We explore here this signal within the Left-Right Mirror Model, which is a Left-Right model that includes mirror fermions; this model is motivated as a possible solution to the strong CP problem and by its rich phenomenology. We find that for particular scenarios of the model parameters, which are in agreement with the most up-to-date experimental constraints, the signal coming from the process
$$e^+e^-\rightarrow V \rightarrow tc$$
(
$$V=Z,\,Z^{\prime }$$
) provides a detectable signal and thus, it can give evidence for FCNC interactions; in these scenarios, the mass of a new neutral gauge boson can be as high as
$$m_{Z'}=7$$
TeV.
MoreTranslated text
Key words
fcnc couplings,single top production,gev,center-of-mass
AI Read Science
Must-Reading Tree
Example
![](https://originalfileserver.aminer.cn/sys/aminer/pubs/mrt_preview.jpeg)
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined