Search For a Leptoquark and Vector-like Lepton in a Muon Collider

TL;DR

This paper investigates the potential of a high-energy muon collider to detect TeV-scale leptoquarks and vector-like leptons, which are motivated by muon g-2 and flavor anomalies, demonstrating promising detection prospects at 3 TeV.

Contribution

It introduces a search strategy for leptoquarks and vector-like leptons at a muon collider within a BSM model extending the Standard Model.

Findings

Significant signals for leptoquarks can be observed at 3 TeV muon collider.

Single production of leptoquarks has a large cross-section at the muon collider.

Detection is feasible with as low as 10 fb$^{-1}$ integrated luminosity.

Abstract

The proposal for a high-energy muon collider offers many opportunities in the search for physics beyond the Standard Model (BSM). The collider by construction is likely to be more sensitive to the muon-philic models, primarily motivated by the BSM explanation of muon $(g-2)$ excess and quark flavor anomalies. In this work, we explore the potential of the proposed muon collider in the context of such models and focus on one such model that extends the Standard Model (SM) with a leptoquark, a vector-like lepton, and a real scalar. In this model, we propose searches for TeV scale leptoquarks in $2\mu+2b+mET$ channel. Notably, the leptoquark can be produced singly at the muon collider with a large cross-section. We have shown that a significant signal in this channel can be detected at a 3~TeV muon collider even with an integrated luminosity as low as $\sim 10$~fb$^{-1}$