Contact Interactions at Future Circular Collider based Muon-Proton Colliders

TL;DR

This paper explores the potential of future muon-proton colliders based on the Future Circular Collider to detect four-fermion contact interactions, providing estimates for discovery and exclusion limits across various helicity structures.

Contribution

It presents the first detailed analysis of contact interaction sensitivity at FCC-based muon-proton colliders, including interference effects and compositeness scale limits.

Findings

FCC-based μp colliders can effectively probe four-fermion contact interactions.

Discovery and exclusion limits depend on interference patterns and helicity structures.

The study demonstrates the collider's high potential for new physics searches.

Abstract

Recently proposed Future Circular Collider based muon-proton colliders will allow investigating lepton-hadron interactions at the highest center-of-mass energy. In this study, we investigate the potential of these colliders for a four-fermion contact interactions search. Regarding the constructive and destructive interferences of contact interactions, we estimated discovery, observation, and exclusion limits on the compositeness scale for the left-left, right-right, left-right, and right-left helicity structures. This study's findings show that the FCC-based {\mu}p colliders have great potential for investigating four-fermion contact interactions.