Displaced Dark Matter at Colliders

Abstract

Models in which the dark matter is very weakly coupled to the observable sector may explain the observed dark matter density, either as a "superWIMP" or as "asymmetric dark matter." Both types of models predict displaced vertices at colliders, with a rich variety of possible phenomenology. We classify the cases in which the decays can naturally occur inside particle detectors at the LHC, with particular focus on the nontrivial scenarios where the decaying particle is invisible. Identification of the position and timing of these invisible displaced vertices significantly improves the prospects of reconstructing the new physics in models such as supersymmetry. In many cases, reconstruction of the visible products of the displaced decay can determine the dark matter mass, allowing the dark matter density to be predicted from collider data.

5 pages, 1 figure, revtex

Cited by in corpus (11)

• Semi-visible Jets: Dark Matter Undercover at the LHC
• The Hunt for New Physics at the Large Hadron Collider
• Long-Lived Neutralino NLSPs
• Singlet-Doublet Dark Matter Freeze-in: LHC displaced signatures versus cosmology
• A feeble window on leptophilic dark matter
• Origins of Hidden Sector Dark Matter II: Collider Physics
• Flavor and Collider Signatures of Asymmetric Dark Matter
• Higgs Production Amidst the LHC Detector
• Extending the LHC Reach for New Physics with Sub-Millimeter Displaced Vertices
• Searching for Metastable Particles with Sub-Millimeter Displaced Vertices at Hadron Colliders
• Reconstructing particle masses in events with displaced vertices