Direct versus indirect detection in mSUGRA with self-consistent halo models

Abstract

We perform a detailed analysis of the detection prospects of neutralino dark matter in themSUGRA framework. We focus on models with a thermal relic density, estimated withhigh accuracy using the package, in the range favoured by current precision cosmological measurements. Directand indirect detection rates are computed implementing two models for the dark matterhalo, tracing opposite regimes for the phase of baryon infall, with fully consistent densityprofiles and velocity distribution functions. This has allowed, for the first time, a fullyconsistent comparison between direct and indirect detection prospects. We discuss allrelevant regimes in the mSUGRA parameter space, underlining relevant effects, andproviding the basis for extending the discussion to alternative frameworks. In general,we find that direct detection and searches for antideuterons in the cosmic raysseems to be the most promising ways to search for neutralinos in these scenarios.