Stringy Neutralino Dark Matter in Light of CDMSII

TL;DR

This paper updates constraints on string-inspired neutralino dark matter models based on recent CDMSII data, identifying parameter regions compatible with experiments and predicting testable spectra at the LHC.

Contribution

It provides the first detailed analysis of neutralino dark matter in a realistic string model considering recent direct detection results.

Findings

Identified parameter regions consistent with CDMSII and other limits.

Predicted specific superpartner and Higgs spectra for LHC testing.

Showed compatibility of string-derived neutralino dark matter with experimental data.

Abstract

Recently, the CDMS experiment has reported the possible first direct-detection of dark matter. We update the direct-detection constraints for neutralino dark matter arising in a realistic string model constructed from intersecting D6-branes taking into account the recent data from the CDMS collaboration. We find that there are well-defined regions of the supersymmetry parameter space where neutralino dark matter satisfying the CDMS and all other experimental limits may be obtained. This results in a set of distinct superpartner and Higgs spectra which may be tested at LHC.