Neutralino Dark Matter and Trilepton Searches in the MSSM

TL;DR

This paper evaluates the potential for detecting neutralino dark matter via trilepton events at the Tevatron, considering cosmological constraints and implications for future dark matter searches within the MSSM framework.

Contribution

It analyzes how cosmological and experimental limits influence the observability of chargino-neutralino production in the MSSM at collider experiments.

Findings

Cosmological relic abundance constraints impact detection prospects.

Direct detection limits restrict parameter space for neutralino dark matter.

Observation at Tevatron would inform future dark matter search strategies.

Abstract

Searches for supersymmetry are among the most exciting physics goals at Run II of the Tevatron. In particular, in supersymmetric models with light charginos, neutralinos and sleptons, associated chargino--neutralino production can potentially be observed as multi-lepton events with missing energy. We discuss how, in the generic TeV-scale MSSM, the prospects for these chargino-neutralino searches are impacted by cosmological considerations, namely the neutralino relic abundance and direct detection limits. We also discuss what an observation of chargino-neutralino production at the Tevatron would imply for the prospects of future direct dark matter searches without assuming specific patterns of supersymmetry breaking.