Search for excited muons at the future SPPC-based muon-proton colliders

TL;DR

This paper explores the potential to discover excited muons at future SPPC-based muon-proton colliders by calculating production cross-sections, decay widths, and kinematic distributions, setting mass limits for various energies and compositeness scales.

Contribution

It provides the first detailed analysis of excited muon production prospects at future muon-proton colliders with specific mass discovery limits based on collider energies and compositeness scales.

Findings

Discovery limits range from 2.7 to 6.7 TeV depending on collider energy.

Calculated cross-sections and decay widths for excited muons at different energies.

Identified optimal kinematic cuts for excited muon detection.

Abstract

We have investigated the production potential of the spin-1/2 excited muons, predicted by the preonic models, at the four SPPC (Super Proton-Proton Collider)-based muon-proton colliders in different center-of-mass energies. For the signal process \mu p\rightarrow\mu^{\star}X\rightarrow\mu\gamma X, the production cross-section and the decay width values of the excited muons have been calculated. The pseudorapidity and transverse momentum distributions of the final state particles of muons and photons have been obtained to be determine the kinematical cuts best suited for discovery of the excited muons. By applying these cuts we have gotten the discovery, observation and exclusion mass limits of the excited muons for two compositeness scale values. It is shown that the discovery limits on the excited muons in case the compositeness scale equals to 100 TeV are 2.7, 3.9, 3.1 and 6.7 TeV for center-of-mass energies of 10.3, 14.2, 14.6 and 20.2 TeV, respectively.