Study of the gluonic quartic gauge couplings at muon colliders

TL;DR

This paper investigates the potential of high-energy muon colliders to detect gluonic quartic gauge couplings, which are extensions of the Standard Model, and finds they could outperform the LHC in sensitivity.

Contribution

The study assesses the sensitivity of muon colliders to gQGCs via a specific process, highlighting their potential advantages over current collider experiments.

Findings

Muon colliders above 4 TeV can better detect gQGCs than the LHC.

The process $^+^- o jj  u u$ is effective for probing gQGCs.

Sensitivity improves with higher collider energies.

Abstract

The potential of the muon colliders open up new possibilities for the exploration of new physics beyond the Standard Model. It is worthwhile to investigate whether muon colliders are suitable for studying gluonic quartic gauge couplings~(gQGCs), which can be contributed by dimension-8 operators in the framework of the Standard Model effective field theory, and are intensively studied recently. In this paper, we study the sensitivity of the process $\mu^+\mu^-\to j j \nu\bar{\nu}$ to gQGCs. Our result indicate that the muon colliders with c.m. energies larger than $4\;{\rm TeV}$ can be more sensitive to gQGCs than the Large Hadron Collider.