A Comperative Study of the Anomalous Single Production of the Fourth Generation Quarks at ep and gamma-p Colliders

TL;DR

This paper investigates the potential to observe anomalous interactions of hypothetical fourth-generation quarks at ep and gamma-p colliders, comparing their effectiveness and identifying optimal conditions for detection.

Contribution

It introduces specific channels for detecting fourth-generation quarks and compares the sensitivity of ep and gamma-p colliders for these processes.

Findings

Gamma-p collider is more advantageous than ep collider.

Lower luminosities are sufficient for detection at gamma-p colliders.

Achievable anomalous coupling strengths are identified.

Abstract

We propose some channels for the possible observation of anomalous interactions of the fourth standard model generation quarks at the Large Hadron Collider based ep and gamma-p colliders. Namely, u_4 (d_4) -> q gamma and u_4 (d_4) -> q Z -> q l^+ l^- decay processes are considered. Signatures for signals and corresponding standard model backgrounds are investigated at both colliders comperatively. The lowest necessary luminosities to observe these processes and the achievable values of the anomalous coupling strengths are determined. It is shown that the gamma-p collider is advantageous compare to the ep collider.