Phenomenological Aspects of Supersymmetric Standard Models without Grand Unification

Abstract

When the GUT relation on gaugino masses is relaxed, the mass and composition of the lightest neutralino are different from those in the GUT case. We discuss its phenomenological implications on the relic abundance of the neutralinos and on superparticle searches. In particular, we focus on the case where the neutral component of Winos dominates the lightest neutralino. It turns out the Wino-LSP is not a candidate for the dark matter.

15 pages, 8 figures ( not included, but available on request ), in LaTeX, TU-410, IFP-436-UNC

References in corpus (2)

• Duality Anomaly Cancellation, Minimal String Unification and the Effective Low-Energy Lagrangian of 4-D Strings
• Coannihilation Effects and Relic Abundance of Higgsino-Dominant LSPs

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