Excited muon production at muon colliders via contact interaction

TL;DR

This paper investigates the potential for discovering excited muons at future muon colliders through contact interactions, analyzing signal and background at various energies to determine discovery limits.

Contribution

It introduces a study of excited muon production via contact interactions at muon colliders, including decay channels and sensitivity analysis at different energies.

Findings

Muon colliders can effectively probe excited muons up to high mass scales.

Contact interactions provide a viable production mechanism for excited muons.

Collider energy significantly influences the discovery potential.

Abstract

In recent years, with the enlightenment of some issues encountered at muon colliders, muon colliders have become more feasible for the high-energy physics community. For this reason, we studied single production of excited muon at muon colliders via contact interaction. Besides, we assumed that the excited muon is produced via contact interactions and decays to the photon and the muon through the gauge interaction. Then, signal and background analyses were performed at the muon anti-muon collider options with 6 TeV, 14 TeV, and 100 TeV center-of-mass energies for the excited muon. Attainable mass and compositeness scale limits were calculated for the excited muon at the muon anti-muon colliders. As a result of the calculations, it was concluded that the muon-antimuon colliders would be a perfect collider option for the excited muon investigations.