Natural dark matter in SUSY GUTs with non-universal gaugino masses

2007/05/29 by Stephen F. King, S. F. King, J. P. Roberts +3 · 6 citations
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Dark matter #Gaugino #Neutralino #Particle physics #Particle physics theoretical and experimental studies #Physics #Supersymmetry #hep-ph

paper · pdf · doi:10.1088/1126-6708/2007/10/106

published as JHEP0710:106,2007 · 20 pages, 3 figures

arxiv created 2007/05/29 · openalex publication_date 2007/11/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We consider neutralino dark matter within the framework of SUSY GUTs with non-universal gaugino masses. In particular we focus on the case of SU(5) with a SUSY breaking F-term in the 1, 24, 75 and 200 dimensional representations. We discuss the 24 case in some detail, and show that the bulk dark matter region cannot be accessed. We then go on to consider the admixture of the singlet SUSY breaking F-term with one of the 24, 75 or 200 dimensional F-terms, and show that in these cases it becomes possible to access the bulk regions corresponding to low fine-tuned dark matter. Our results are presented in the (M₁,M₂) plane for fixed M₃ and so are useful for considering general GUT models, as well as more general non-universal gaugino models.

Citations

• Nonuniversal soft supersymmetry breaking and dark matter
• Motivations for and Implications of Non-Universal GUT-Scale Boundary Conditions for Soft SUSY-Breaking Parameters
• SUSY Dark Matter: Closing The Parameter Space
• Prospects for the direct detection of neutralino dark matter in orbifold scenarios
• Neutralino–proton cross sections in supergravity models
• Soft SUSY breaking and family symmetry
• Top-squark-mediated annihilation scenario and direct detection of dark matter in compressed supersymmetry
• Three‐YearWilkinson Microwave Anisotropy Probe(WMAP) Observations: Implications for Cosmology

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