Mono-jet Signatures of Gluphilic Scalar Dark Matter

TL;DR

This paper investigates mono-jet signatures of gluphilic scalar dark matter at colliders, comparing full one-loop calculations with EFT, and assesses current and future collider constraints on the model.

Contribution

It provides a detailed analysis of mono-jet signals for GSDM, highlighting the limitations of EFT and projecting collider sensitivities for different energies.

Findings

EFT fails to accurately describe regions with mediator masses near experimental cuts.

Current 8 TeV LHC data constrains GSDM models.

Future 13 TeV and 100 TeV colliders will significantly improve detection prospects.

Abstract

A gluphilic scalar dark matter (GSDM) model has recently been proposed as an interesting vision for WIMP dark matter communicating dominantly with the Standard Model via gluons. We discuss the collider signature of a hard jet recoiling against missing momentum ("mono-jet") in such a construction, whose leading contribution is at one-loop. We compare the full one-loop computation with an effective field theory (EFT) treatment, and find (as expected) that EFT does not accurately describe regions of parameter space where mass of the colored mediator particles are comparable to the experimental cuts on the missing energy. We determine bounds (for several choices of SU(3) representation of the mediator) from the $\sqrt{s}=$ 8 TeV data, and show the expected reach of the $\sqrt{s}=$ 13 TeV LHC and a future 100 TeV $pp$ collider to constrain or discover GSDM models.