Annual Modulation Signature for the Direct Detection of Milky Way Wimps and Supergravity Models

TL;DR

This paper analyzes the annual modulation signal for direct detection of relic neutralinos within supergravity models, showing compatibility with DAMA experiment signals and discussing proton stability effects.

Contribution

It demonstrates that both minimal and non-minimal supergravity models can produce neutralino-proton cross-sections consistent with DAMA data, including considerations of proton stability.

Findings

Neutralino-proton cross-sections align with DAMA signals

Both minimal and non-minimal SUGRA models are compatible

Proton stability impacts the analysis of detection signals

Abstract

An analysis is given of the annual modulation signal for the direct detection of relic neutralinos within the framework of supergravity unified models. It is shown that both the minimal and the non-minimal SUGRA models can generate neutralino-proton cross-sections at the level compatible with the signals reported in the DAMA experiment at the Gran Sasso National Laboratory. Effects of proton stability on the analysis of the DAMA data in the minimal and the non-minimal SUGRA models are also discussed.