Relic Neutralino Densities and Detection Rates with Nonuniversal Gaugino Masses

Abstract

We extend previous analyses on the interplay between nonuniversalities in the gaugino mass sector and the thermal relic densities of LSP neutralinos, in particular to the case of moderate to large tan beta. We introduce a set of parameters that generalizes the standard unified scenario to cover the complete allowed parameter space in the gaugino mass sector. We discuss the physical significance of the cosmologically preferred degree of degeneracy between charginos and the LSP and study the effect this degree of degeneracy has on the prospects for direct detection of relic neutralinos in the next round of dark matter detection experiments. Lastly, we compare the fine tuning required to achieve a satisfactory relic density with the case of universal gaugino masses, as in minimal supergravity, and find it to be of a similar magnitude. The sensitivity of quantifiable measures of fine-tuning on such factors as the gluino mass and top and bottom masses is also examined.

Uses RevTeX; 14 pages, 16 figures

References in corpus (10)

• Measurement of the Positive Muon Anomalous Magnetic Moment to 0.7 ppm
• Exploration of the MSSM with Non-Universal Higgs Masses
• Updated Constraints on the Minimal Supergravity Model
• Neutralino Dark Matter beyond CMSSM Universality
• Re-examination of Electroweak Symmetry Breaking in Supersymmetry and Implications for Light Superpartners
• Upper and Lower Limits on Neutralino WIMP Mass and Spin--Independent Scattering Cross Section, and Impact of New (g-2)_{mu} Measurement
• Theory-Motivated Benchmark Models and Superpartners at the Tevatron
• Super-conservative interpretation of muon g-2 results applied to supersymmetry
• XENON: a 1 tonne Liquid Xenon Experiment for a Sensitive Dark Matter Search
• Gaugino and Higgsino Coannihilations I: Neutralino-Neutralino Interactions

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