Non-Universal Gaugino Masses, CDMS, and the LHC

TL;DR

This paper explores a supersymmetric dark matter model with non-universal gaugino masses, linking CDMS-II detection hints to potential signals at the LHC and other experiments, emphasizing the importance of Higgsino and wino components in the neutralino.

Contribution

It proposes a specific non-universal gaugino mass scenario that explains CDMS-II events and predicts correlated signals at the LHC and direct detection experiments.

Findings

Non-universal gaugino masses can account for CDMS-II events.

Predicted signals include specific signatures at the LHC.

Neutralino composition influences detection prospects.

Abstract

We consider the possibility that the recently reported events at the CDMS-II direct dark matter detection experiment are the result of coherent scattering of supersymmetric neutralinos. In such a scenario we argue that non-universal soft supersymmetry breaking gaugino masses are favored with a resulting lightest neutralino with significant Higgsino and wino components. We discuss the accompanying signals which must be seen at liquid-xenon direct detection experiments and indirect detection experiments if such a supersymmetric interpretation is to be maintained. We illustrate the possible consequences for early discovery channels at the LHC via a set of benchmark points designed to give rise to an observed event rate comparable to the reported CDMS-II data.