Higgsino Cold Dark Matter Motivated by Collider Data

Abstract

Motivated by the supersymmetric interpretation of the CDF eeγγplus missing energy event and the reported Z->bb excess at LEP, we analyze the Higgsino as a cold dark matter candidate. We examine the constraints as implied by the collider experiments, and then calculate its relic density. We find that this Higgsino-like lightest supersymmetric particle is a viable cold dark matter candidate (0.05 < Omega h^2 < 1), and we discuss its favorable prospects for laboratory detection.

10 pages, 3 figures, LaTeX with epsf

References in corpus (4)

• Cosmological Relic Density from Minimal Supergravity with Implications for Collider Physics
• Anomaly-Free Gauged R-Symmetry
• Implications of the reported deviations from the standard model for Z->bb and alpha_s
• Precision tests of the MSSM

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