New Signatures of WIMPless Dark Matter

TL;DR

This paper explores new collider signatures of low-mass WIMPless dark matter, highlighting the potential for Tevatron and LHC to detect such particles through heavy QCD-coupled particle decays to dark matter plus jets.

Contribution

It introduces novel collider detection strategies for low-mass WIMPless dark matter, emphasizing the use of heavy QCD-coupled particle production and decay signatures.

Findings

Tevatron can probe significant low-mass parameter space with existing data.

LHC has improved prospects for detecting WIMPless dark matter.

Collider signatures involve heavy QCD-coupled particles decaying to dark matter plus jets.

Abstract

We consider new signatures of WIMPless dark matter, particularly those which can be used to test models with low dark matter mass. We focus on detection prospects at hadron colliders through the production of new heavy QCD-coupled particles, which decay to WIMPless dark matter plus jets. We find that the Tevatron can probe a significant fraction of the low mass parameter space with data already taken, and the LHC will have even better detection prospects with its first physics run.