Mono-everything: combined limits on dark matter production at colliders from multiple final states

TL;DR

This paper combines collider search results across multiple final states and experiments to establish the strongest current limits on dark matter production, especially for masses below 100 GeV, within effective field theory frameworks.

Contribution

It introduces a comprehensive combination of collider dark matter search results across different final states and experiments, enhancing the overall sensitivity and limits.

Findings

Most stringent collider limits on dark matter interactions to date.

Effective field theory constraints extended to various final states.

Improved mapping of collider limits to direct detection and self-annihilation parameters.

Abstract

Searches for dark matter production at particle colliders are complementary to direct-detection and indirect-detection experiments, and especially powerful for small masses, $m_\chi<100$ GeV. An important collider dark matter signature is due to the production of a pair of these invisible particles with the initial-state radiation of a standard model particle. Currently, collider searches use individual and nearly orthogonal final states to search for initial-state jets, photons or massive gauge bosons. We combine these results across final states and across experiments to give the strongest current collider-based limits in the context of effective field theories, and map these to limits on dark matter interactions with nuclei and to dark matter self-annhiliation.