https://doi.org/10.1140/epjp/s13360-022-02452-w
Regular Article
Single top production via FCNC couplings at an 
collider with center-of-mass energy 
GeV
1
Departamento de Física, FES Cuautitlán, Universidad Nacional Autónoma de México, 54770, Estado de México, México
2
Centro Interdisciplinario de Investigación y Enseñanza de la Ciencia (CIIEC), Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
3
Facultad de Ciencias Físico - Matemáticas, Benemérita Universidad Autónoma de Puebla, C.P. 72570, Puebla, Pue, Mexico
4
Instituto de Física, Universidad Nacional Autónoma de México, C.P. 01000, CDMX, México
Received:
13
August
2021
Accepted:
7
February
2022
Published online:
25
February
2022
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 
to 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 
(
) 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 
TeV.
© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2022
